1 00:00:02,514 --> 00:00:05,253 WILLIAM SHATNER: A giant stone monument rising from the sands of Egypt... 2 00:00:06,355 --> 00:00:08,627 ...a labyrinth of long-forgotten tunnels 3 00:00:08,627 --> 00:00:08,694 ...a labyrinth of long-forgotten tunnels beneath the German countryside 4 00:00:08,694 --> 00:00:10,130 beneath the German countryside 5 00:00:10,229 --> 00:00:13,102 and the remains of an ancient pyramid 6 00:00:13,202 --> 00:00:17,110 located in the heart of the United States. 7 00:00:20,450 --> 00:00:22,054 Ancient ruins fascinate us 8 00:00:22,187 --> 00:00:24,525 because they often reveal how much 9 00:00:24,659 --> 00:00:27,798 or how little we know about our past. 10 00:00:27,798 --> 00:00:27,832 or how little we know about our past. The discovery of a lost city 11 00:00:27,832 --> 00:00:30,136 The discovery of a lost city 12 00:00:30,236 --> 00:00:33,275 or the unearthing of a giant stone monument 13 00:00:33,342 --> 00:00:36,650 can suddenly challenge our understanding of human history. 14 00:00:36,650 --> 00:00:38,519 But is it possible that, 15 00:00:38,654 --> 00:00:41,392 by investigating ancient structures, 16 00:00:41,525 --> 00:00:44,699 we can uncover their long-held secrets? 17 00:00:44,799 --> 00:00:48,406 Or has the truth behind these mysterious ruins 18 00:00:48,573 --> 00:00:51,212 simply been lost to time? 19 00:00:51,312 --> 00:00:55,353 Well, that is what we'll try and find out. 20 00:00:55,386 --> 00:00:57,390 ♪ ♪ 21 00:01:13,757 --> 00:01:16,596 While conducting research high in the Andes Mountains, 22 00:01:16,696 --> 00:01:20,370 archaeologist Dr. Ruth Shady notices 23 00:01:20,436 --> 00:01:24,613 a number of mounds and hills in the landscape 24 00:01:24,679 --> 00:01:28,720 that do not appear to have been made by Mother Nature. 25 00:01:30,758 --> 00:01:33,262 PAUL BAHN: Most people had assumed that these great mounds were natural. 26 00:01:33,462 --> 00:01:34,532 But, nevertheless, 27 00:01:34,599 --> 00:01:37,772 when Ruth Shady arrived at the site in 1994, 28 00:01:37,872 --> 00:01:40,076 she realized that there was something here 29 00:01:40,209 --> 00:01:42,882 that was more than just natural hills. 30 00:01:44,251 --> 00:01:46,389 She had an instinct, really, a gut feeling, I think, 31 00:01:46,522 --> 00:01:48,526 which many archaeologists acquire, 32 00:01:48,627 --> 00:01:51,298 that this place was worth exploring. 33 00:01:51,398 --> 00:01:54,337 And, boy, she explored it and hit the jackpot. 34 00:01:56,208 --> 00:01:58,346 SHATNER: As they began excavating, 35 00:01:58,479 --> 00:02:00,552 Dr. Shady and her team discovered 36 00:02:00,651 --> 00:02:04,926 the ruins of a forgotten ancient city 37 00:02:04,926 --> 00:02:04,993 the ruins of a forgotten ancient city that has become known as Caral. 38 00:02:04,993 --> 00:02:08,633 that has become known as Caral. 39 00:02:09,802 --> 00:02:11,505 FELICIA BEARDSLEY: Ruth Shady has spent 40 00:02:11,639 --> 00:02:14,946 years, now, working in Caral. 41 00:02:14,946 --> 00:02:15,012 years, now, working in Caral. Caral has, under her supervision, 42 00:02:15,012 --> 00:02:18,621 Caral has, under her supervision, 43 00:02:18,720 --> 00:02:23,296 become part of the World Heritage List now. 44 00:02:23,396 --> 00:02:27,470 So that says this is one of those unique places 45 00:02:27,504 --> 00:02:31,980 that tells a story about civilization in the New World. 46 00:02:33,650 --> 00:02:37,558 SHATNER: According to experts, what is remarkable about Caral is that, 47 00:02:37,658 --> 00:02:41,800 unlike other ancient ruins located in Peru 48 00:02:41,800 --> 00:02:43,637 such as Machu Picchu, 49 00:02:43,670 --> 00:02:45,674 Sacsayhuaman 50 00:02:45,674 --> 00:02:47,679 and Ollantaytambo, 51 00:02:47,778 --> 00:02:51,586 Caral was not built by the Incas. 52 00:02:51,653 --> 00:02:55,928 It was built by a previously unknown civilization 53 00:02:55,928 --> 00:02:55,995 It was built by a previously unknown civilization that remains shrouded in mystery. 54 00:02:55,995 --> 00:02:58,834 that remains shrouded in mystery. 55 00:03:00,403 --> 00:03:01,439 Caral is one of the most impressive 56 00:03:01,573 --> 00:03:02,842 and so the most important sites 57 00:03:02,842 --> 00:03:03,877 in South America. 58 00:03:04,946 --> 00:03:07,885 Certainly in terms of its size. 59 00:03:07,985 --> 00:03:11,760 Excavations revealed it covers a huge area 60 00:03:11,893 --> 00:03:15,133 and was clearly a great metropolis 61 00:03:15,299 --> 00:03:18,373 for prehistoric South America. 62 00:03:18,506 --> 00:03:21,278 You've got this incredible complex 63 00:03:21,411 --> 00:03:23,817 covering hundreds of acres, 64 00:03:23,817 --> 00:03:23,850 covering hundreds of acres, with an amphitheater... 65 00:03:23,850 --> 00:03:25,754 with an amphitheater... 66 00:03:26,956 --> 00:03:30,296 ...supplementary temples, 67 00:03:30,463 --> 00:03:33,369 all kinds of artifacts, 68 00:03:33,469 --> 00:03:36,676 suggesting a sophisticated civilization. 69 00:03:38,312 --> 00:03:40,751 BEARDSLEY: The Greater Pyramid in Caral, 70 00:03:40,851 --> 00:03:43,590 this is the biggest structure there is. 71 00:03:43,723 --> 00:03:45,493 It dominates the landscape. 72 00:03:46,495 --> 00:03:48,332 It is the center of the city. 73 00:03:48,465 --> 00:03:51,873 It is nearly 500 feet long, 74 00:03:51,873 --> 00:03:51,907 It is nearly 500 feet long, nearly 400 feet wide, 75 00:03:51,907 --> 00:03:54,144 nearly 400 feet wide, 76 00:03:54,311 --> 00:03:56,983 60 feet tall. 77 00:03:56,983 --> 00:03:57,017 60 feet tall. And on one side of it, 78 00:03:57,017 --> 00:03:58,386 And on one side of it, 79 00:03:58,519 --> 00:04:01,993 it has this 30-foot-wide staircase 80 00:04:01,993 --> 00:04:02,060 it has this 30-foot-wide staircase that descends from the very top 81 00:04:02,060 --> 00:04:04,565 that descends from the very top 82 00:04:04,732 --> 00:04:08,406 down to a sunken circular plaza. 83 00:04:09,474 --> 00:04:13,015 The whole structure itself has a stepped profile, 84 00:04:13,048 --> 00:04:19,829 which has a number of very large terraces built into the side. 85 00:04:19,896 --> 00:04:22,935 There's a network of ceremonial rooms, some large rooms, 86 00:04:22,935 --> 00:04:22,969 There's a network of ceremonial rooms, some large rooms, some smaller rooms, 87 00:04:22,969 --> 00:04:25,406 some smaller rooms, 88 00:04:25,574 --> 00:04:28,580 built with stone and mortar. 89 00:04:28,747 --> 00:04:31,318 It's a phenomenal structure. 90 00:04:33,055 --> 00:04:36,896 BAHN: This was a culture with no wheels, with no metal tools. 91 00:04:36,896 --> 00:04:36,930 BAHN: This was a culture with no wheels, with no metal tools. And so the building 92 00:04:36,930 --> 00:04:38,633 And so the building 93 00:04:38,700 --> 00:04:42,274 took an awful lot of people carrying earth and stones 94 00:04:42,373 --> 00:04:43,977 from wherever they got them from. 95 00:04:45,346 --> 00:04:47,919 You needed architects of some kind, maybe engineers, 96 00:04:47,952 --> 00:04:52,027 probably thousands and thousands of man-hours to erect that. 97 00:04:53,429 --> 00:04:56,001 BEARDSLEY: The other thing that shows up in the Greater Pyramid 98 00:04:56,068 --> 00:04:59,441 that tells us something about the nature of... 99 00:04:59,609 --> 00:05:01,579 of Caral as a civilization 100 00:05:01,713 --> 00:05:05,319 are symbols of monkeys. 101 00:05:05,486 --> 00:05:08,092 So, in this part of Peru, 102 00:05:08,092 --> 00:05:08,126 So, in this part of Peru, there are no monkeys. 103 00:05:08,126 --> 00:05:09,629 there are no monkeys. 104 00:05:10,864 --> 00:05:13,837 Those actually come from the Amazon basin. 105 00:05:14,906 --> 00:05:18,246 Which means that the people of Caral had to 106 00:05:18,412 --> 00:05:21,954 basically go over the Andes 107 00:05:22,020 --> 00:05:26,528 and into another part of South America altogether. 108 00:05:27,698 --> 00:05:28,934 So why is this significant? 109 00:05:29,034 --> 00:05:33,342 It tells us that they are a central point 110 00:05:33,509 --> 00:05:35,647 for a vast trading network. 111 00:05:35,814 --> 00:05:38,687 And not just goods but ideas. 112 00:05:40,557 --> 00:05:44,064 SHATNER: The discovery of Caral's ruins challenged everything we knew 113 00:05:44,130 --> 00:05:47,103 or thought we knew about the history of civilization 114 00:05:47,103 --> 00:05:47,136 or thought we knew about the history of civilization in Central and South America. 115 00:05:47,136 --> 00:05:49,609 in Central and South America. 116 00:05:50,677 --> 00:05:52,882 And not just because of its elaborate design 117 00:05:52,982 --> 00:05:56,088 but also because of what experts learned 118 00:05:56,121 --> 00:05:59,829 when they were able to begin carbon-dating its artifacts. 119 00:06:01,131 --> 00:06:03,737 BAHN: Towards the bottom of the great mound, 120 00:06:03,870 --> 00:06:06,275 they found remains of what seemed to be 121 00:06:06,475 --> 00:06:07,978 reed bags or baskets 122 00:06:07,978 --> 00:06:08,045 reed bags or baskets in which the earth and stones 123 00:06:08,045 --> 00:06:10,551 in which the earth and stones 124 00:06:10,651 --> 00:06:12,454 would have been carried to make the mound. 125 00:06:12,588 --> 00:06:14,759 These are called "shicras." 126 00:06:15,861 --> 00:06:18,900 Of course, you can date reeds by the radiocarbon method. 127 00:06:20,002 --> 00:06:22,708 And so samples were sent off to various labs. 128 00:06:22,875 --> 00:06:24,277 And to everyone's surprise, 129 00:06:24,545 --> 00:06:27,685 the answer was far earlier than anybody had expected. 130 00:06:28,653 --> 00:06:29,889 The dates came back 131 00:06:30,022 --> 00:06:33,763 to approximately 2600 BC and earlier. 132 00:06:34,899 --> 00:06:37,838 The same age as the pyramids in Egypt, 133 00:06:37,971 --> 00:06:41,680 much older than other civilizations 134 00:06:41,746 --> 00:06:44,451 that were known at the time in the New World. 135 00:06:45,486 --> 00:06:47,457 It's very likely that Caral goes back 136 00:06:47,624 --> 00:06:49,461 at least to that kind of period. 137 00:06:49,628 --> 00:06:52,033 It is arguable that Caral 138 00:06:52,033 --> 00:06:52,100 It is arguable that Caral is the kind of mother culture 139 00:06:52,100 --> 00:06:54,038 is the kind of mother culture 140 00:06:54,170 --> 00:06:57,377 for what came later in South America, 141 00:06:57,510 --> 00:06:59,181 like the Inca civilizations. 142 00:06:59,214 --> 00:07:03,189 However, there are lower layers at Caral which have been dug. 143 00:07:03,222 --> 00:07:06,963 They may well find samples that can be dated far earlier 144 00:07:06,963 --> 00:07:06,997 They may well find samples that can be dated far earlier than anybody expected, 145 00:07:06,997 --> 00:07:09,534 than anybody expected, 146 00:07:09,635 --> 00:07:12,073 possibly at a period even several centuries 147 00:07:12,073 --> 00:07:12,107 possibly at a period even several centuries before the pyramids of Giza, 148 00:07:12,107 --> 00:07:13,577 before the pyramids of Giza, 149 00:07:13,676 --> 00:07:15,513 which will alter our view of the past. 150 00:07:16,916 --> 00:07:21,124 SHATNER: Is it possible that the ruins of Caral are actually older 151 00:07:21,124 --> 00:07:21,158 SHATNER: Is it possible that the ruins of Caral are actually older than the Egyptian pyramids, 152 00:07:21,158 --> 00:07:22,828 than the Egyptian pyramids, 153 00:07:22,928 --> 00:07:25,400 which were built almost 5,000 years ago? 154 00:07:25,533 --> 00:07:28,038 It's an extraordinary possibility, 155 00:07:28,072 --> 00:07:31,946 and the discoveries at Caral are forcing archaeologists 156 00:07:32,046 --> 00:07:36,288 to redefine the timeline of human history. 157 00:07:36,556 --> 00:07:39,027 BEARDSLEY: What was the old definition of civilization? 158 00:07:39,094 --> 00:07:43,235 It was extracted from the site of Mesopotamia, 159 00:07:43,235 --> 00:07:43,269 It was extracted from the site of Mesopotamia, which is in Iraq, basically. 160 00:07:43,269 --> 00:07:46,541 which is in Iraq, basically. 161 00:07:46,709 --> 00:07:51,252 Mesopotamia starts at 3500 BC. 162 00:07:51,284 --> 00:07:56,929 And then the idea was that all civilizations used Mesopotamia 163 00:07:56,929 --> 00:07:58,265 as the model. 164 00:07:58,265 --> 00:07:58,299 as the model. But, looking at Caral, 165 00:07:58,299 --> 00:08:00,804 But, looking at Caral, 166 00:08:00,871 --> 00:08:05,915 we expect that Caral is gonna reach back to 3200 BC, 167 00:08:06,014 --> 00:08:09,053 which indicates an incredible possibility 168 00:08:09,187 --> 00:08:11,458 that faces the world of archaeology. 169 00:08:11,692 --> 00:08:17,370 So we have to start rethinking what we mean by "civilization." 170 00:08:18,673 --> 00:08:22,113 It's incredible to think that, before Caral was discovered, 171 00:08:22,180 --> 00:08:25,153 we had no idea that such a massive civilization 172 00:08:25,252 --> 00:08:28,226 existed in South America that far back in history. 173 00:08:28,258 --> 00:08:32,434 And it also makes you wonder-- could there be other ruins 174 00:08:32,668 --> 00:08:35,506 around the world that are older than we ever thought possible? 175 00:08:35,607 --> 00:08:38,747 Perhaps the answer can be found by examining 176 00:08:38,813 --> 00:08:43,322 the most recognizable ancient ruin in the world today, 177 00:08:43,322 --> 00:08:44,892 the Sphinx. 178 00:08:50,937 --> 00:08:54,612 SHATNER: Sitting atop a plateau just a few miles west of the Nile River 179 00:08:54,745 --> 00:08:56,917 is the Giza Necropolis, 180 00:08:57,016 --> 00:08:59,556 perhaps the most famous collection of ruins 181 00:08:59,755 --> 00:09:01,057 in the entire world. 182 00:09:02,093 --> 00:09:03,162 Believed to be constructed 183 00:09:03,295 --> 00:09:05,366 during ancient Egypt's Fourth Dynasty, 184 00:09:05,366 --> 00:09:08,506 around 2550 BC, 185 00:09:08,640 --> 00:09:11,011 these limestone monuments attract 186 00:09:11,178 --> 00:09:12,849 thousands of tourists every day 187 00:09:12,948 --> 00:09:17,223 who come to marvel at the immense pyramids, 188 00:09:17,223 --> 00:09:19,662 forbidding tombs 189 00:09:19,762 --> 00:09:23,737 and a mysterious stone sentinel known as... 190 00:09:23,937 --> 00:09:26,208 the Sphinx. 191 00:09:27,945 --> 00:09:30,016 I think you can argue that the Sphinx 192 00:09:30,082 --> 00:09:34,190 is the most recognizable statue anywhere in the world. 193 00:09:36,094 --> 00:09:38,767 Its scale is immense. 194 00:09:38,933 --> 00:09:42,306 It's one single piece of stone. 195 00:09:43,342 --> 00:09:46,214 It is cut from the natural rock 196 00:09:46,214 --> 00:09:46,215 It is cut from the natural rock of the Giza Plateau. 197 00:09:46,215 --> 00:09:49,588 of the Giza Plateau. 198 00:09:49,688 --> 00:09:53,529 SHATNER: The Sphinx stands 240 feet long, 199 00:09:53,696 --> 00:09:58,272 66 feet tall and 62 feet wide. 200 00:09:59,340 --> 00:10:01,345 For thousands of years, this massive statue 201 00:10:01,411 --> 00:10:05,587 has been an object of both fascination and wonder. 202 00:10:05,720 --> 00:10:07,791 But even after centuries of study, 203 00:10:07,958 --> 00:10:11,064 the Sphinx holds many secrets 204 00:10:11,131 --> 00:10:15,406 that archaeologists are still trying to unravel. 205 00:10:15,406 --> 00:10:15,472 that archaeologists are still trying to unravel. The Sphinx that we know today, 206 00:10:15,472 --> 00:10:17,779 The Sphinx that we know today, 207 00:10:17,878 --> 00:10:19,749 the Sphinx from the Great Pyramids of Giza, 208 00:10:19,848 --> 00:10:23,088 is the most famous of all sphinxes. 209 00:10:23,155 --> 00:10:26,830 But there are sphinxes all over ancient Egypt. 210 00:10:26,996 --> 00:10:29,034 There are smaller sphinxes. 211 00:10:29,100 --> 00:10:33,476 There's an avenue full of sphinxes between the temples. 212 00:10:34,812 --> 00:10:38,385 NAUNTON: But the Great Sphinx at Giza is something very different. 213 00:10:38,385 --> 00:10:38,419 NAUNTON: But the Great Sphinx at Giza is something very different. It's a single sculpture. 214 00:10:38,419 --> 00:10:40,422 It's a single sculpture. 215 00:10:40,422 --> 00:10:40,523 It's a single sculpture. It sits in a very particular place. 216 00:10:40,523 --> 00:10:43,062 It sits in a very particular place. 217 00:10:43,195 --> 00:10:44,565 It doesn't seem to have performed 218 00:10:44,732 --> 00:10:46,067 the same function at all. 219 00:10:46,067 --> 00:10:47,638 What was it for? 220 00:10:47,738 --> 00:10:49,440 This is what we really want to know. 221 00:10:50,710 --> 00:10:53,917 No one has understood exactly what it means. 222 00:10:55,052 --> 00:10:57,691 Because, for literally thousands of years, 223 00:10:57,791 --> 00:11:01,966 the Sphinx was buried up to its neck in sand. 224 00:11:02,066 --> 00:11:05,339 So it's only a head sticking out of the sand 225 00:11:05,339 --> 00:11:05,373 So it's only a head sticking out of the sand for much of its history. 226 00:11:05,373 --> 00:11:07,176 for much of its history. 227 00:11:07,310 --> 00:11:09,447 NAUNTON: There is a very famous painting 228 00:11:09,748 --> 00:11:13,790 of Emperor Napoleon standing in front of the Sphinx, 229 00:11:13,890 --> 00:11:16,362 buried still, at this point, up to its shoulders. 230 00:11:16,428 --> 00:11:18,967 You might think, what has Napoleon got to do 231 00:11:19,067 --> 00:11:20,805 with Egypt and the Sphinx? Well, in fact, 232 00:11:20,904 --> 00:11:24,444 Napoleon led an invasion of Egypt in 1798, 233 00:11:24,444 --> 00:11:24,545 Napoleon led an invasion of Egypt in 1798, which had a big impact back in Europe 234 00:11:24,545 --> 00:11:27,517 which had a big impact back in Europe 235 00:11:27,784 --> 00:11:32,059 in raising awareness and interest in ancient Egypt sites. 236 00:11:33,261 --> 00:11:37,069 SHATNER: It wasn't until the 1920s that a team of archaeologists, 237 00:11:37,203 --> 00:11:40,142 led by engineer Emile Baraize, 238 00:11:40,209 --> 00:11:44,450 succeeded in unearthing the Sphinx from the desert sands. 239 00:11:44,450 --> 00:11:44,517 succeeded in unearthing the Sphinx from the desert sands. They were able to expose it 240 00:11:44,517 --> 00:11:46,556 They were able to expose it 241 00:11:46,822 --> 00:11:50,029 and to... so to reveal for the first time in centuries 242 00:11:50,095 --> 00:11:52,333 that this was not just a head, a disembodied head, 243 00:11:52,333 --> 00:11:52,400 that this was not just a head, a disembodied head, but a-a full sphinx sculpture. 244 00:11:52,400 --> 00:11:55,239 but a-a full sphinx sculpture. 245 00:11:56,241 --> 00:11:58,278 And this is a watershed moment 246 00:11:58,378 --> 00:12:01,017 for our understanding of the Sphinx. 247 00:12:02,086 --> 00:12:04,324 Archaeologists and Egyptologists like myself 248 00:12:04,390 --> 00:12:09,434 believe that the Sphinx was sculpted around 2500 BC 249 00:12:09,434 --> 00:12:12,240 by King Khephren 250 00:12:12,373 --> 00:12:15,179 as a part of his funerary complex. 251 00:12:15,212 --> 00:12:19,321 But a lot of scholars disagree about the Sphinx, 252 00:12:19,420 --> 00:12:22,394 and there's a lot of mystery surrounding 253 00:12:22,493 --> 00:12:25,834 when was the Sphinx actually sculpted. 254 00:12:26,936 --> 00:12:29,474 One of the most important documents we have 255 00:12:29,507 --> 00:12:33,348 to deal with the dating of the Sphinx is the Inventory Stela. 256 00:12:34,818 --> 00:12:39,962 This is a commemorative stone that actually records details 257 00:12:40,062 --> 00:12:44,271 of how the Pharaoh Khufu repaired the Sphinx 258 00:12:44,404 --> 00:12:46,274 after it was struck by lightning. 259 00:12:49,113 --> 00:12:55,159 The significance of this is that Khufu came before Khafre, 260 00:12:55,259 --> 00:12:58,767 the pharaoh who is conventionally said 261 00:12:58,900 --> 00:13:01,304 to have constructed the Sphinx. 262 00:13:02,506 --> 00:13:06,081 SCHOCH: The Inventory Stela has an inscription 263 00:13:06,181 --> 00:13:11,458 that goes back to about 4,600 years ago. 264 00:13:11,458 --> 00:13:11,491 that goes back to about 4,600 years ago. And that inscription says 265 00:13:11,491 --> 00:13:13,229 And that inscription says 266 00:13:13,328 --> 00:13:17,103 that the Sphinx is a much older structure 267 00:13:17,269 --> 00:13:19,440 that the Egyptians adopted 268 00:13:19,440 --> 00:13:19,507 that the Egyptians adopted and repaired and venerated. 269 00:13:19,507 --> 00:13:22,848 and repaired and venerated. 270 00:13:24,150 --> 00:13:27,223 SHATNER: Based on the inscriptions on the Inventory Stela, 271 00:13:27,323 --> 00:13:29,127 there are some archaeologists who believe 272 00:13:29,293 --> 00:13:31,098 that the Sphinx is so ancient 273 00:13:31,164 --> 00:13:34,872 that it could predate any records in human history 274 00:13:35,038 --> 00:13:36,909 that are known to exist. 275 00:13:38,044 --> 00:13:40,316 And some researchers are convinced that physical evidence 276 00:13:40,349 --> 00:13:45,126 of the Sphinx's true age can be found on the structure itself. 277 00:13:45,192 --> 00:13:48,099 SCHOCH: The first time I visited the Sphinx 278 00:13:48,265 --> 00:13:50,603 was in the summer of 1990. 279 00:13:50,603 --> 00:13:50,637 was in the summer of 1990. My early studies of the Sphinx 280 00:13:50,637 --> 00:13:53,008 My early studies of the Sphinx 281 00:13:53,074 --> 00:13:57,250 looked at the erosional features on the body of the Sphinx 282 00:13:57,316 --> 00:14:00,758 and comparing that to other erosional features 283 00:14:00,924 --> 00:14:02,326 right on the Giza Plateau. 284 00:14:02,426 --> 00:14:06,268 And what I found was the body of the Sphinx 285 00:14:06,367 --> 00:14:08,940 and the walls of the Sphinx enclosure 286 00:14:09,107 --> 00:14:10,877 are weathered differently 287 00:14:10,977 --> 00:14:13,448 than everything else on the Giza Plateau. 288 00:14:14,618 --> 00:14:20,129 The rest of the plateau shows classic wind erosion. 289 00:14:20,229 --> 00:14:24,671 But what is on the Sphinx is water weathering. 290 00:14:24,671 --> 00:14:24,738 But what is on the Sphinx is water weathering. It's rainfall, precipitation, 291 00:14:24,738 --> 00:14:28,011 It's rainfall, precipitation, 292 00:14:28,145 --> 00:14:30,183 and this makes no sense 293 00:14:30,215 --> 00:14:34,324 when the Sphinx is sitting on the edge of the Sahara Desert 294 00:14:34,490 --> 00:14:36,629 that has been a bone-dry desert 295 00:14:36,629 --> 00:14:36,696 that has been a bone-dry desert for literally thousands of years. 296 00:14:36,696 --> 00:14:39,569 for literally thousands of years. 297 00:14:39,635 --> 00:14:43,442 So what I concluded is that the body of the Sphinx, 298 00:14:43,576 --> 00:14:46,181 and therefore the original statue, 299 00:14:46,314 --> 00:14:49,555 had to go back to pre-Sahara times, 300 00:14:49,655 --> 00:14:53,262 when there was a much more temperate climate, 301 00:14:53,361 --> 00:14:56,569 much more moisture, much more rainfall. 302 00:14:56,602 --> 00:15:00,376 And it has to go back not just a little bit into that period 303 00:15:00,409 --> 00:15:04,317 but quite far back, given that we have incredible amount 304 00:15:04,417 --> 00:15:07,389 of weathering and erosion on the Sphinx. 305 00:15:08,425 --> 00:15:10,663 I now think that it goes back 306 00:15:10,663 --> 00:15:10,731 I now think that it goes back to the end of the last ice age, 307 00:15:10,731 --> 00:15:13,569 to the end of the last ice age, 308 00:15:13,569 --> 00:15:15,674 circa 10,000 BC. 309 00:15:15,740 --> 00:15:20,817 I am convinced that it is a ruin from predynastic Egypt. 310 00:15:21,084 --> 00:15:23,689 SHATNER: Is it possible that the Sphinx was constructed 311 00:15:23,689 --> 00:15:23,756 SHATNER: Is it possible that the Sphinx was constructed more than 12,000 years ago, 312 00:15:23,756 --> 00:15:26,094 more than 12,000 years ago, 313 00:15:26,160 --> 00:15:29,601 centuries before the ancient Egyptian civilization 314 00:15:29,601 --> 00:15:31,204 even existed? 315 00:15:32,273 --> 00:15:35,512 If so, who carved it? And for what purpose? 316 00:15:35,547 --> 00:15:38,553 Some researchers believe the answers to these questions 317 00:15:38,586 --> 00:15:44,263 will be found in a secret room hidden beneath the Sphinx. 318 00:15:45,499 --> 00:15:48,171 NAUNTON: Something that there's been a lot of speculation about 319 00:15:48,305 --> 00:15:50,008 regarding the Sphinx is that there is 320 00:15:50,108 --> 00:15:53,015 some kind of chamber hidden underneath it. 321 00:15:53,181 --> 00:15:57,123 A psychic named Edgar Cayce, 322 00:15:57,223 --> 00:15:59,127 in the first half of the 20th century, 323 00:15:59,227 --> 00:16:02,299 asserted that there would be such a chamber 324 00:16:02,366 --> 00:16:06,775 and that this was the legendary Hall of Records, 325 00:16:06,775 --> 00:16:06,876 and that this was the legendary Hall of Records, which would reveal very great secrets 326 00:16:06,876 --> 00:16:09,447 which would reveal very great secrets 327 00:16:09,581 --> 00:16:12,053 relating to an ancient civilization 328 00:16:12,186 --> 00:16:14,190 responsible for creating the Sphinx 329 00:16:14,323 --> 00:16:16,629 and all these great wonders. 330 00:16:16,729 --> 00:16:19,434 He also suggested that this would be discovered 331 00:16:19,601 --> 00:16:21,437 by the end of the 20th century. 332 00:16:21,537 --> 00:16:26,481 It was only confirmed relatively recently 333 00:16:26,514 --> 00:16:32,526 that excavations discovered a passageway in the Sphinx. 334 00:16:34,363 --> 00:16:35,633 ROMANY: There is a tunnel 335 00:16:35,733 --> 00:16:38,706 that was found under the paw of the Sphinx, 336 00:16:38,773 --> 00:16:44,350 a tunnel that people believe connects to another structure. 337 00:16:45,385 --> 00:16:47,257 We have not discovered 338 00:16:47,356 --> 00:16:50,096 what happens at the end of that tunnel. 339 00:16:50,228 --> 00:16:53,368 Where does this tunnel lead to? 340 00:16:53,468 --> 00:16:56,141 Someday in the future, we might find a room 341 00:16:56,307 --> 00:16:57,978 that we've never heard of. 342 00:16:58,111 --> 00:17:00,315 So, the more we dig, the more we find 343 00:17:00,449 --> 00:17:04,190 about the secrets of ancient Egypt. 344 00:17:05,292 --> 00:17:08,198 Was the Sphinx built by a civilization 345 00:17:08,298 --> 00:17:10,670 that existed long before the ancient Egyptians? 346 00:17:10,703 --> 00:17:14,377 It seems hard to believe, but the truth is that archaeologists 347 00:17:14,477 --> 00:17:16,582 dig up unbelievable things all the time. 348 00:17:16,715 --> 00:17:18,686 For example, consider the discovery 349 00:17:18,686 --> 00:17:18,753 For example, consider the discovery of a 100-foot-tall pyramid mound 350 00:17:18,753 --> 00:17:21,491 of a 100-foot-tall pyramid mound 351 00:17:21,592 --> 00:17:24,698 constructed more than a thousand years ago 352 00:17:24,698 --> 00:17:24,765 constructed more than a thousand years ago that is located in the heartland 353 00:17:24,765 --> 00:17:26,969 that is located in the heartland 354 00:17:27,136 --> 00:17:28,739 of the United States. 355 00:17:34,317 --> 00:17:35,853 SHATNER: In the heart of the downtown district 356 00:17:35,853 --> 00:17:35,921 SHATNER: In the heart of the downtown district stands the Wainwright Building. 357 00:17:35,921 --> 00:17:38,759 stands the Wainwright Building. 358 00:17:38,759 --> 00:17:40,096 Built in 1891, 359 00:17:40,295 --> 00:17:41,498 this office building 360 00:17:41,565 --> 00:17:45,005 is one of the world's first modern skyscrapers. 361 00:17:45,172 --> 00:17:46,909 But, as it turns out, 362 00:17:47,176 --> 00:17:50,215 there is a similarly sized structure in this region 363 00:17:50,382 --> 00:17:52,821 that is much, much older. 364 00:17:52,821 --> 00:17:52,855 that is much, much older. Just ten miles east of the city 365 00:17:52,855 --> 00:17:56,294 Just ten miles east of the city 366 00:17:56,361 --> 00:17:59,768 stand the ruins of an ancient man-made pyramid mound 367 00:17:59,768 --> 00:17:59,802 stand the ruins of an ancient man-made pyramid mound that was built centuries ago 368 00:17:59,802 --> 00:18:03,475 that was built centuries ago 369 00:18:03,576 --> 00:18:07,349 and is as tall as a ten-story building. 370 00:18:08,652 --> 00:18:11,825 This is the largest prehistoric earthwork 371 00:18:11,825 --> 00:18:11,859 This is the largest prehistoric earthwork in the Western Hemisphere, 372 00:18:11,859 --> 00:18:13,796 in the Western Hemisphere, 373 00:18:13,896 --> 00:18:16,134 the largest totally earthen mound built 374 00:18:16,200 --> 00:18:17,971 by ancient people in North or South America. 375 00:18:19,340 --> 00:18:22,380 Its base actually is bigger than the Great Pyramid in Egypt, 376 00:18:22,513 --> 00:18:24,718 and it stands 100 feet high. 377 00:18:24,751 --> 00:18:29,762 And it was built with about 22 million cubic feet of dirt 378 00:18:29,828 --> 00:18:33,001 that had to be carried in baskets on people's backs 379 00:18:33,201 --> 00:18:34,671 and deposited. 380 00:18:34,738 --> 00:18:37,911 SHATNER: The fact that the ruins of a man-made pyramid 381 00:18:37,911 --> 00:18:38,012 SHATNER: The fact that the ruins of a man-made pyramid sit in the middle of the United States 382 00:18:38,012 --> 00:18:40,249 sit in the middle of the United States 383 00:18:40,382 --> 00:18:43,355 might come as a surprise for some. 384 00:18:43,488 --> 00:18:46,962 And yet this monumental earthen mound 385 00:18:47,229 --> 00:18:50,770 is merely one of more than a hundred similar structures 386 00:18:50,903 --> 00:18:52,841 that have been discovered in this area. 387 00:18:52,907 --> 00:18:58,351 They're all part of a sprawling ancient city named Cahokia. 388 00:18:59,353 --> 00:19:03,262 Cahokia is arguably the most important 389 00:19:03,361 --> 00:19:07,369 of the ancient cities of North America. 390 00:19:08,505 --> 00:19:14,250 Constructed approximately between 700 and 1350 AD, 391 00:19:14,383 --> 00:19:17,690 it was an incredible metropolis. 392 00:19:18,692 --> 00:19:21,097 We have this idea of the first peoples 393 00:19:21,264 --> 00:19:23,168 as being hunter-gatherers 394 00:19:23,268 --> 00:19:26,174 and riding around on horses all the time, 395 00:19:26,274 --> 00:19:29,447 and that's simply the wrong impression. 396 00:19:29,614 --> 00:19:31,385 They were an incredibly 397 00:19:31,517 --> 00:19:34,758 technologically sophisticated society. 398 00:19:36,595 --> 00:19:39,233 ISEMINGER: We don't know what this place was called 399 00:19:39,300 --> 00:19:41,705 or what... the language that people spoke here. 400 00:19:41,805 --> 00:19:43,943 The name Cahokia comes from a later group 401 00:19:43,976 --> 00:19:47,450 of American Indians that moved into this area in the 1600s 402 00:19:47,550 --> 00:19:49,788 from further north, around the Great Lakes. 403 00:19:49,855 --> 00:19:52,526 They were here, but they did not build the mounds. 404 00:19:52,594 --> 00:19:55,365 They just later used it as part of their settlement. 405 00:19:56,568 --> 00:19:59,206 We often use the term "city" when we talk about Cahokia 406 00:19:59,373 --> 00:20:00,977 because of its magnitude. 407 00:20:01,010 --> 00:20:04,450 It covered nearly six square miles or about 4,000 acres. 408 00:20:05,452 --> 00:20:08,291 During its peak, between 1050 and 1150 AD, 409 00:20:08,424 --> 00:20:09,628 there were probably, you know, 410 00:20:09,694 --> 00:20:12,533 40,000, 50,000 people living within this region. 411 00:20:12,600 --> 00:20:16,374 It would be larger than London was at that time. 412 00:20:17,376 --> 00:20:19,748 And yet, 200 years later, 413 00:20:19,748 --> 00:20:21,752 by 1350 AD, 414 00:20:21,852 --> 00:20:24,791 the whole place had been abandoned. 415 00:20:25,860 --> 00:20:28,464 And, indeed, there is a mystery 416 00:20:28,599 --> 00:20:31,672 of exactly what took place there. 417 00:20:32,907 --> 00:20:35,245 SHATNER: But if Cahokia was such a thriving metropolis, 418 00:20:35,378 --> 00:20:36,783 then it begs the question-- 419 00:20:36,882 --> 00:20:39,888 how did this civilization come to an end? 420 00:20:40,990 --> 00:20:43,563 It's a mystery that has driven archaeologists 421 00:20:43,629 --> 00:20:47,402 to scour Cahokia's ruins in search of an answer. 422 00:20:48,538 --> 00:20:51,879 There are a number of hypotheses about the decline of Cahokia. 423 00:20:52,881 --> 00:20:55,687 One involves evidence of a defensive wall 424 00:20:55,753 --> 00:20:58,124 that was built around the center of Cahokia. 425 00:20:58,358 --> 00:21:01,732 So that indicates that they had conflicts and warfare. 426 00:21:01,832 --> 00:21:03,936 And there's been suggestions that maybe, 427 00:21:04,003 --> 00:21:06,942 with the crowded conditions here, perhaps there was 428 00:21:06,942 --> 00:21:06,976 with the crowded conditions here, perhaps there was increases in-in disease. 429 00:21:06,976 --> 00:21:09,413 increases in-in disease. 430 00:21:10,550 --> 00:21:12,887 SHATNER: Did the threat of warfare or poor living conditions 431 00:21:12,921 --> 00:21:17,163 cause the inhabitants of Cahokia to abandon this thriving city? 432 00:21:17,362 --> 00:21:18,799 It's hard to say. 433 00:21:18,799 --> 00:21:18,833 It's hard to say. But in recent years 434 00:21:18,833 --> 00:21:20,903 But in recent years 435 00:21:20,903 --> 00:21:20,970 But in recent years another theory has emerged, 436 00:21:20,970 --> 00:21:23,108 another theory has emerged, 437 00:21:23,374 --> 00:21:26,381 one that suggests there may have been a more sinister reason 438 00:21:26,548 --> 00:21:29,453 behind Cahokia's demise. 439 00:21:29,520 --> 00:21:32,393 So, one of the ideas that's been put forward is 440 00:21:32,526 --> 00:21:34,565 that something quite dark took place there 441 00:21:34,598 --> 00:21:38,538 and this is why there's little evidence in the oral tradition 442 00:21:38,672 --> 00:21:40,542 or the folklore of this area. 443 00:21:40,576 --> 00:21:43,348 And this could be ultimately why the site was abandoned. 444 00:21:44,918 --> 00:21:47,423 ISEMINGER: Back in the late '60s and early '70s, 445 00:21:47,590 --> 00:21:48,826 there was an excavation 446 00:21:48,893 --> 00:21:51,665 at a small mound here on the site called Mound 72. 447 00:21:51,798 --> 00:21:54,304 As we dug further into the mound, 448 00:21:54,403 --> 00:21:56,374 there was a burial pit about five feet deep. 449 00:21:56,507 --> 00:21:59,079 And at the bottom of that they found 450 00:21:59,079 --> 00:21:59,080 And at the bottom of that they found 53 mostly young women, 451 00:21:59,080 --> 00:22:02,319 53 mostly young women, 452 00:22:02,486 --> 00:22:03,889 all buried at the same time, 453 00:22:03,956 --> 00:22:06,862 laid out in two rows and piled in there two deep. 454 00:22:07,864 --> 00:22:09,601 Next to them were four men 455 00:22:09,701 --> 00:22:11,404 with their heads and their hands cut off, 456 00:22:11,571 --> 00:22:12,840 apparently, in some ritual. 457 00:22:14,577 --> 00:22:17,750 The burials that came out of Mound 72 458 00:22:17,817 --> 00:22:21,992 quite clearly showed evidence of mass sacrifice. 459 00:22:22,994 --> 00:22:24,631 We have to ask ourselves 460 00:22:24,698 --> 00:22:27,536 whether this would have had any kind of impact 461 00:22:27,637 --> 00:22:30,977 upon the society as a whole at Cahokia. 462 00:22:32,012 --> 00:22:33,382 SHATNER: Did the vast majority 463 00:22:33,481 --> 00:22:36,956 of Cahokia's inhabitants abandon their city 464 00:22:37,022 --> 00:22:39,260 because its leaders were engaging in the practice 465 00:22:39,460 --> 00:22:41,464 of human sacrifice? 466 00:22:41,598 --> 00:22:44,671 And if so, then where did they go? 467 00:22:44,804 --> 00:22:46,742 Is this tragedy enough to explain 468 00:22:46,875 --> 00:22:48,646 why there is no written record 469 00:22:48,712 --> 00:22:50,884 that this civilization ever existed? 470 00:22:50,983 --> 00:22:55,525 For now, experts remain collectively baffled 471 00:22:55,626 --> 00:22:59,634 and worry that we may never know for sure. 472 00:22:59,701 --> 00:23:02,206 We really must question, you know, what really happened, 473 00:23:02,472 --> 00:23:05,478 because it could have been something much more mysterious 474 00:23:05,613 --> 00:23:07,182 that we just don't know about. 475 00:23:08,184 --> 00:23:11,725 It's remarkable to think that, centuries ago, 476 00:23:11,758 --> 00:23:14,831 there was a massive civilization that built large structures 477 00:23:14,964 --> 00:23:18,271 in what is now Southern Illinois. 478 00:23:18,538 --> 00:23:22,547 But not all ancient ruins are hiding in plain sight. 479 00:23:22,613 --> 00:23:26,555 Some were designed to remain secret and are hidden 480 00:23:26,722 --> 00:23:28,659 right beneath our feet. 481 00:23:34,871 --> 00:23:37,142 SHATNER: In this quiet rural town, 482 00:23:37,242 --> 00:23:39,949 a Bavarian dairy farmer watches in horror 483 00:23:39,981 --> 00:23:44,724 as one of her cows falls into what appears to be a sinkhole. 484 00:23:46,561 --> 00:23:49,601 But after thankfully rescuing the animal, 485 00:23:49,667 --> 00:23:52,440 the farmer discovers that her cow hadn't stumbled 486 00:23:52,640 --> 00:23:54,076 into a sinkhole 487 00:23:54,176 --> 00:23:58,451 but rather a mysterious subterranean ruin 488 00:23:58,652 --> 00:24:01,858 known as an erdstall. 489 00:24:02,827 --> 00:24:06,534 Erdstall are human-carved tunnels 490 00:24:06,668 --> 00:24:08,773 that extend into the ground. 491 00:24:08,872 --> 00:24:11,043 You know, they're-they're chiseled out of stone. 492 00:24:12,245 --> 00:24:14,685 COLLINS: They are like mini labyrinths, 493 00:24:14,851 --> 00:24:16,922 mini underground cities, 494 00:24:16,955 --> 00:24:22,700 and the erdstalls consisted of a series of chambers and tunnels 495 00:24:22,834 --> 00:24:25,673 and stretched for about 125 feet 496 00:24:25,840 --> 00:24:27,510 and was on different levels. 497 00:24:27,610 --> 00:24:30,850 And archaeologists have investigated it 498 00:24:30,950 --> 00:24:35,125 and have suggested that there was activity there 499 00:24:35,125 --> 00:24:35,191 and have suggested that there was activity there as much as a thousand years ago. 500 00:24:35,191 --> 00:24:37,296 as much as a thousand years ago. 501 00:24:38,665 --> 00:24:42,206 SHATNER: But this isn't the only erdstall that's been discovered. 502 00:24:42,239 --> 00:24:46,180 In fact, similar man-made tunnels have been found hidden 503 00:24:46,280 --> 00:24:50,689 all across southeastern Germany and Austria. 504 00:24:51,925 --> 00:24:54,864 Many of them are found just in the middle of nowhere, 505 00:24:54,898 --> 00:24:58,104 um, you know, out in somebody's field or something like that. 506 00:24:59,139 --> 00:25:00,843 Or within the cellar areas 507 00:25:00,910 --> 00:25:04,651 or foundations of old houses, old structures. 508 00:25:05,719 --> 00:25:08,492 Some of them may be very limited. 509 00:25:08,625 --> 00:25:10,128 You go in and it's just sort of 510 00:25:10,195 --> 00:25:12,667 one little chamber, two little interconnected chambers. 511 00:25:12,767 --> 00:25:16,474 And some of them extend hundreds of feet 512 00:25:16,608 --> 00:25:18,144 in many different directions with, 513 00:25:18,244 --> 00:25:19,814 you know, all sorts of different little, 514 00:25:19,914 --> 00:25:21,618 sort of, side chambers and passages. 515 00:25:22,653 --> 00:25:24,925 COLLINS: We don't know who carved them. 516 00:25:25,024 --> 00:25:27,496 We don't know when they were carved. 517 00:25:27,630 --> 00:25:30,201 We don't know their original purpose. 518 00:25:31,237 --> 00:25:32,574 Because of this, 519 00:25:32,640 --> 00:25:37,048 the erdstall tunnels are incredibly mysterious. 520 00:25:38,619 --> 00:25:42,225 SHATNER: One investigator driven to solve the mystery of the erdstalls 521 00:25:42,225 --> 00:25:42,226 SHATNER: One investigator driven to solve the mystery of the erdstalls is Dieter Ahlborn. 522 00:25:42,226 --> 00:25:44,998 is Dieter Ahlborn. 523 00:25:46,200 --> 00:25:50,108 He has been exploring these tunnels for more than 20 years. 524 00:25:53,715 --> 00:25:54,717 Mm. 525 00:26:17,062 --> 00:26:18,097 And, uh... 526 00:26:29,888 --> 00:26:32,893 SHATNER: To date, more than 1,200 long-abandoned erdstalls 527 00:26:32,960 --> 00:26:37,035 have been found beneath the German and Austrian soil. 528 00:26:37,102 --> 00:26:41,344 But why would anyone go to such lengths to carve 529 00:26:41,377 --> 00:26:45,185 these bizarre underground structures in the first place? 530 00:26:46,220 --> 00:26:48,424 BAHN: Normally, if you've got tunnels 531 00:26:48,424 --> 00:26:48,458 BAHN: Normally, if you've got tunnels or caves, you will find 532 00:26:48,458 --> 00:26:50,262 or caves, you will find 533 00:26:50,361 --> 00:26:53,367 bones or-or artifacts or something inside them. 534 00:26:53,367 --> 00:26:53,468 bones or-or artifacts or something inside them. There is nothing in these erdstalls, 535 00:26:53,468 --> 00:26:57,042 There is nothing in these erdstalls, 536 00:26:57,142 --> 00:26:58,946 and that has made it very, very difficult 537 00:26:59,112 --> 00:27:01,217 to know what they were for. 538 00:27:01,317 --> 00:27:04,156 TREISTER: They're obviously completely dark, 539 00:27:04,256 --> 00:27:06,327 and, interestingly, you don't see areas 540 00:27:06,393 --> 00:27:09,667 where there were, like, hearths or, um, fires. 541 00:27:09,767 --> 00:27:11,203 You don't have, you know, charcoal. 542 00:27:11,303 --> 00:27:14,543 But there are also these tiny little areas 543 00:27:14,777 --> 00:27:17,584 carved out for a place where, like, a lamp would be placed 544 00:27:17,817 --> 00:27:20,022 so that people who are actually building would be able to see. 545 00:27:20,121 --> 00:27:22,627 So it's clearly... it was very well-planned 546 00:27:22,793 --> 00:27:24,665 and designed and executed, 547 00:27:24,731 --> 00:27:27,235 and yet we don't know what they were built for. 548 00:27:42,165 --> 00:27:43,200 And, um... 549 00:28:04,443 --> 00:28:07,750 SHATNER: If the erdstalls weren't made for any practical purpose, 550 00:28:07,917 --> 00:28:09,386 then why were they built? 551 00:28:09,453 --> 00:28:13,327 Well, some people believe that they weren't created 552 00:28:13,327 --> 00:28:13,328 Well, some people believe that they weren't created to be used by the living 553 00:28:13,328 --> 00:28:15,432 to be used by the living 554 00:28:15,498 --> 00:28:19,506 but, rather, they were designed to be a resting place 555 00:28:19,506 --> 00:28:19,540 but, rather, they were designed to be a resting place for the souls of the dead. 556 00:28:19,540 --> 00:28:21,945 for the souls of the dead. 557 00:28:22,045 --> 00:28:27,056 A very unique theory, uh, about erdstalls 558 00:28:27,188 --> 00:28:30,361 was that there was a lot of Christian ideas 559 00:28:30,361 --> 00:28:30,395 was that there was a lot of Christian ideas as to their function. 560 00:28:30,395 --> 00:28:33,201 as to their function. 561 00:28:33,234 --> 00:28:38,278 And they would have been used to collect the souls of the dead, 562 00:28:38,344 --> 00:28:42,987 where they would remain until the Day of Judgment 563 00:28:43,087 --> 00:28:46,828 and then they would rise to go to heaven. 564 00:28:48,097 --> 00:28:51,036 SHATNER: Is it possible that the erdstalls were constructed 565 00:28:51,136 --> 00:28:53,909 by Christians throughout Central Europe 566 00:28:54,009 --> 00:28:58,484 to be holding chambers for people's souls 567 00:28:58,484 --> 00:28:58,552 to be holding chambers for people's souls as they waited to get into heaven? 568 00:28:58,552 --> 00:29:00,790 as they waited to get into heaven? 569 00:29:01,023 --> 00:29:02,425 Perhaps. 570 00:29:03,996 --> 00:29:05,064 But, on the other hand, 571 00:29:05,164 --> 00:29:07,737 there are some archaeologists who believe 572 00:29:07,837 --> 00:29:10,910 that explanation isn't quite good enough. 573 00:29:11,010 --> 00:29:14,249 And one reason is that, as it turns out, 574 00:29:14,282 --> 00:29:19,828 erdstalls aren't only being found in Germany and Austria. 575 00:29:19,927 --> 00:29:25,104 People are discovering them all over Europe. 576 00:29:25,138 --> 00:29:28,679 BAHN: There are similar tunnels in many parts of Europe. 577 00:29:28,912 --> 00:29:31,985 Even Israel has some, but it's very, very difficult 578 00:29:32,052 --> 00:29:35,860 to see any kind of linking, uh, phenomenon between them. 579 00:29:35,959 --> 00:29:39,099 Perhaps there was some widespread belief 580 00:29:39,266 --> 00:29:40,903 that we know nothing about, 581 00:29:41,003 --> 00:29:44,443 because they were clearly of great importance. 582 00:29:44,543 --> 00:29:46,214 TREISTER: Humans have been able to-to chisel 583 00:29:46,346 --> 00:29:49,086 into stone for thousands of years. 584 00:29:49,186 --> 00:29:52,860 There's probably countless structures 585 00:29:52,927 --> 00:29:56,568 throughout the ancient world that are in places 586 00:29:56,568 --> 00:29:56,668 throughout the ancient world that are in places where we just don't know that they exist. 587 00:29:56,668 --> 00:29:59,941 where we just don't know that they exist. 588 00:30:01,310 --> 00:30:03,548 The discovery of ancient underground tunnels 589 00:30:03,548 --> 00:30:03,549 The discovery of ancient underground tunnels beneath buildings and even people's homes all over Europe 590 00:30:03,549 --> 00:30:07,522 beneath buildings and even people's homes all over Europe 591 00:30:07,556 --> 00:30:11,230 is proof that ruins can be found in unexpected places. 592 00:30:11,363 --> 00:30:13,067 In fact, there are those who believe 593 00:30:13,200 --> 00:30:15,538 that there are ancient structures 594 00:30:15,606 --> 00:30:19,446 located in areas that you might never imagine, 595 00:30:19,479 --> 00:30:24,289 including the least hospitable place on Earth: Antarctica. 596 00:30:27,328 --> 00:30:28,799 SHATNER: On the bottom of our planet 597 00:30:28,932 --> 00:30:31,303 lies the frigid land of Antarctica, 598 00:30:31,403 --> 00:30:34,543 the coldest and most inhospitable continent 599 00:30:34,543 --> 00:30:35,979 in the world. 600 00:30:36,046 --> 00:30:39,086 Stretching over five million square miles, 601 00:30:39,186 --> 00:30:41,758 Antarctica is covered in ice sheets 602 00:30:41,891 --> 00:30:44,163 that reach more than a mile deep. 603 00:30:44,196 --> 00:30:48,872 The average daily temperature is -49 degrees Fahrenheit, 604 00:30:48,939 --> 00:30:52,580 and wind speeds can reach over 100 miles per hour. 605 00:30:52,646 --> 00:30:56,555 Today, the only inhabitants of this barren landscape 606 00:30:56,621 --> 00:31:00,061 are scientists who work in research stations 607 00:31:00,228 --> 00:31:02,600 scattered across the continent. 608 00:31:02,633 --> 00:31:06,340 Mainstream geologists have long believed that ancient humans 609 00:31:06,373 --> 00:31:10,883 never settled on Antarctica because of its hostile climate. 610 00:31:11,083 --> 00:31:14,591 But incredibly, in 2016, 611 00:31:14,690 --> 00:31:17,663 satellite images revealed a curious formation 612 00:31:17,663 --> 00:31:17,697 satellite images revealed a curious formation emerging from the ice 613 00:31:17,697 --> 00:31:20,837 emerging from the ice 614 00:31:20,969 --> 00:31:23,374 that some researchers believe could be 615 00:31:23,374 --> 00:31:23,408 that some researchers believe could be a man-made pyramid. 616 00:31:23,408 --> 00:31:27,048 a man-made pyramid. 617 00:31:27,115 --> 00:31:30,322 COLLINS: Recently, there have been a number of reports 618 00:31:30,388 --> 00:31:35,298 of pyramids, huge, great pyramids, in Antarctica. 619 00:31:35,431 --> 00:31:38,471 They jut out of the ice and snow, 620 00:31:38,537 --> 00:31:42,746 and they look perfect, just like those in Egypt. 621 00:31:42,980 --> 00:31:47,824 But they dwarf those in Egypt, like the Great Pyramid. 622 00:31:47,990 --> 00:31:51,296 One has a perfectly square base 623 00:31:51,396 --> 00:31:55,038 that is two kilometers square in each direction. 624 00:31:55,137 --> 00:31:59,246 Is it possible, therefore, that our ancestors 625 00:31:59,346 --> 00:32:03,287 did actually reach the Antarctic continent 626 00:32:03,420 --> 00:32:05,626 and perhaps even settle there? 627 00:32:05,692 --> 00:32:10,468 SHATNER: A man-made pyramid beneath the Antarctic ice? 628 00:32:10,569 --> 00:32:13,943 If such an incredible notion is true, 629 00:32:14,042 --> 00:32:16,648 then it naturally begs some questions. 630 00:32:16,681 --> 00:32:21,925 How was such a massive structure built on Antarctica? 631 00:32:22,058 --> 00:32:24,931 When was it done? And by whom? 632 00:32:25,164 --> 00:32:29,139 COLLINS: Antarctica, we have been told from the geologists, 633 00:32:29,206 --> 00:32:33,381 has been under ice for many millions of years. 634 00:32:33,447 --> 00:32:37,155 However, there is evidence that it could have been 635 00:32:37,255 --> 00:32:41,496 free of ice, certainly in certain areas, 636 00:32:41,496 --> 00:32:41,530 free of ice, certainly in certain areas, until, perhaps, 4000 BC. 637 00:32:41,530 --> 00:32:45,104 until, perhaps, 4000 BC. 638 00:32:47,208 --> 00:32:51,049 There are a large number of stories from Polynesia 639 00:32:51,183 --> 00:32:53,955 of so-called "culture heroes," 640 00:32:54,089 --> 00:32:56,995 who reached the Antarctic continent. 641 00:32:57,095 --> 00:33:01,370 A French academic by the name of Argod 642 00:33:01,470 --> 00:33:03,908 put together all of these different stories 643 00:33:04,042 --> 00:33:07,550 in a book titled Out of Antarctica. 644 00:33:07,650 --> 00:33:12,058 The Polynesian peoples' stories describe 645 00:33:12,158 --> 00:33:15,197 this strange land, with these white rocks 646 00:33:15,264 --> 00:33:17,670 that come out of the water, which are icebergs, 647 00:33:17,770 --> 00:33:23,081 and other creatures, such as seals and penguins, 648 00:33:23,147 --> 00:33:25,619 and seem to describe an area that we now know 649 00:33:25,619 --> 00:33:27,122 as Antarctica. 650 00:33:27,255 --> 00:33:30,996 The Polynesian peoples believed 651 00:33:31,096 --> 00:33:33,568 this was the place of the ancestors. 652 00:33:33,635 --> 00:33:36,975 And they said, this is where, uh, we came from originally. 653 00:33:37,075 --> 00:33:41,585 Why did they believe this if this was untrue? 654 00:33:41,618 --> 00:33:46,695 SHATNER: Is it really possible that the coldest place on Earth 655 00:33:46,794 --> 00:33:49,901 was once warm enough to be inhabited by humans? 656 00:33:50,134 --> 00:33:51,370 Well, 657 00:33:51,436 --> 00:33:56,080 in 2017, German geologists collected core samples 658 00:33:56,113 --> 00:33:59,286 from deep within the frozen Antarctic seafloor 659 00:33:59,386 --> 00:34:02,025 in order to analyze what the continent's climate 660 00:34:02,125 --> 00:34:05,298 might have been like thousands of years ago. 661 00:34:05,398 --> 00:34:09,874 What they discovered was astonishing. 662 00:34:10,141 --> 00:34:15,185 JOHANN KLAGES: In the case of that expedition in early 2017, 663 00:34:15,284 --> 00:34:18,390 we used a very special seafloor drill rig 664 00:34:18,457 --> 00:34:21,698 that, uh, hasn't been used before in Antarctica. 665 00:34:21,831 --> 00:34:25,606 So when we used this special drill rig 666 00:34:25,706 --> 00:34:29,446 and the sediments came up, we saw immediately 667 00:34:29,547 --> 00:34:34,389 more than 60 different taxa of plants. 668 00:34:34,422 --> 00:34:38,565 Similar to something that you would find in a rain forest, 669 00:34:38,665 --> 00:34:43,241 in a temperature regime that was similar 670 00:34:43,340 --> 00:34:47,282 to what we today know from Northern Italy. 671 00:34:47,382 --> 00:34:52,926 And finding that on the Antarctic continent-- 672 00:34:52,926 --> 00:34:52,993 And finding that on the Antarctic continent-- that was the most exciting thing. 673 00:34:52,993 --> 00:34:55,098 that was the most exciting thing. 674 00:34:55,231 --> 00:34:58,404 Because the climatic conditions 675 00:34:58,537 --> 00:35:01,477 doesn't today allow any vegetation 676 00:35:01,611 --> 00:35:03,581 to survive under those conditions. 677 00:35:03,581 --> 00:35:03,582 to survive under those conditions. So, based on that location and the environment we found, 678 00:35:03,582 --> 00:35:08,592 So, based on that location and the environment we found, 679 00:35:08,658 --> 00:35:12,499 I think that the Antarctic continent and the secrets 680 00:35:12,633 --> 00:35:15,138 that still need to be recovered 681 00:35:15,237 --> 00:35:18,878 will tell us a lot about planet Earth. 682 00:35:18,945 --> 00:35:23,888 SHATNER: Was Antarctica once a tropical rain forest 683 00:35:23,888 --> 00:35:23,889 SHATNER: Was Antarctica once a tropical rain forest where people lived? 684 00:35:23,889 --> 00:35:26,360 where people lived? 685 00:35:26,526 --> 00:35:28,331 It may sound impossible, 686 00:35:28,430 --> 00:35:30,902 but some scientists have suggested a theory 687 00:35:30,902 --> 00:35:30,969 but some scientists have suggested a theory that might offer an explanation. 688 00:35:30,969 --> 00:35:33,608 that might offer an explanation. 689 00:35:33,641 --> 00:35:37,750 They claim that it's possible that the continent of Antarctica 690 00:35:37,750 --> 00:35:37,816 They claim that it's possible that the continent of Antarctica wasn't always at the South Pole, 691 00:35:37,816 --> 00:35:40,288 wasn't always at the South Pole, 692 00:35:40,388 --> 00:35:44,229 but rather that it shifted there over time. 693 00:35:44,295 --> 00:35:45,932 CARLOTTO: The idea of pole shifts was proposed 694 00:35:45,932 --> 00:35:45,999 CARLOTTO: The idea of pole shifts was proposed by Charles Hapgood in the 1950s. 695 00:35:45,999 --> 00:35:49,173 by Charles Hapgood in the 1950s. 696 00:35:49,406 --> 00:35:52,880 Hapgood was a science teacher, a professor in New Hampshire, 697 00:35:52,913 --> 00:35:57,121 and he published a book called the Earth's Shifting Crust 698 00:35:57,321 --> 00:35:58,758 in the 1950s. 699 00:35:58,758 --> 00:35:58,792 in the 1950s. And what Hapgood proposed 700 00:35:58,792 --> 00:36:01,330 And what Hapgood proposed 701 00:36:01,430 --> 00:36:04,069 was that the geographic pole will change. 702 00:36:04,269 --> 00:36:05,973 In Hapgood's research, 703 00:36:06,239 --> 00:36:10,549 he proposed that the poles shifted 18,000 years ago. 704 00:36:10,682 --> 00:36:12,386 And the way it changes is that 705 00:36:12,518 --> 00:36:14,757 the whole crust of the Earth changes. 706 00:36:14,824 --> 00:36:19,934 It slips, sort of like an orange skin over an orange. 707 00:36:19,934 --> 00:36:19,968 It slips, sort of like an orange skin over an orange. If Hapgood's theory is correct, 708 00:36:19,968 --> 00:36:21,838 If Hapgood's theory is correct, 709 00:36:21,938 --> 00:36:25,445 Antarctica would have been not at the South Pole 710 00:36:25,478 --> 00:36:28,317 but would have been shifted to a much more temperate climate, 711 00:36:28,450 --> 00:36:31,457 like New Zealand or South Africa. 712 00:36:31,557 --> 00:36:34,262 It's possible that there could have been 713 00:36:34,329 --> 00:36:38,370 an ancient civilization long ago when Antarctica 714 00:36:38,437 --> 00:36:42,813 was in a more temperate, uh, climate and was habitable. 715 00:36:42,813 --> 00:36:42,847 was in a more temperate, uh, climate and was habitable. COLLINS: Is it possible 716 00:36:42,847 --> 00:36:44,984 COLLINS: Is it possible 717 00:36:45,284 --> 00:36:50,028 that such a pyramid could actually be in Antarctica? 718 00:36:50,261 --> 00:36:54,502 We are now getting slim pieces of evidence that are telling us 719 00:36:54,637 --> 00:36:59,079 that it was occupied in the past. 720 00:36:59,345 --> 00:37:03,020 All of these are clues that will give us more information 721 00:37:03,020 --> 00:37:03,086 All of these are clues that will give us more information about the people of the past, 722 00:37:03,086 --> 00:37:05,358 about the people of the past, 723 00:37:05,457 --> 00:37:09,567 and the greater antiquity of the human race. 724 00:37:09,600 --> 00:37:13,809 If it was ever proven that there really is an ancient pyramid 725 00:37:13,908 --> 00:37:17,349 on Antarctica, that could very well be 726 00:37:17,448 --> 00:37:20,254 the most extraordinary structure ever found. 727 00:37:20,421 --> 00:37:22,325 But there are other ruins 728 00:37:22,458 --> 00:37:24,564 that, while they may seem more ordinary, 729 00:37:24,730 --> 00:37:26,500 are no less baffling. 730 00:37:26,601 --> 00:37:29,473 For instance, a seemingly unremarkable series 731 00:37:29,573 --> 00:37:32,713 of stone buildings off the coast of Scotland 732 00:37:32,746 --> 00:37:36,754 that left behind a mystery we may never be able to solve. 733 00:37:39,627 --> 00:37:42,766 SHATNER: The Orkney Islands, Scotland. 734 00:37:43,801 --> 00:37:46,039 This rocky archipelago 735 00:37:46,039 --> 00:37:46,106 This rocky archipelago off the coast of Great Britain 736 00:37:46,106 --> 00:37:47,777 off the coast of Great Britain 737 00:37:47,910 --> 00:37:50,916 is home to well-preserved Stone Age ruins 738 00:37:50,916 --> 00:37:50,950 is home to well-preserved Stone Age ruins known as Skara Brae. 739 00:37:50,950 --> 00:37:54,791 known as Skara Brae. 740 00:37:54,890 --> 00:37:57,696 Skara Brae was discovered in 1850, 741 00:37:57,796 --> 00:38:03,340 after a storm revealed these ancient ruins. 742 00:38:03,407 --> 00:38:06,079 COLLINS: This storm moved a whole load of sand 743 00:38:06,079 --> 00:38:06,113 COLLINS: This storm moved a whole load of sand away from a location, 744 00:38:06,113 --> 00:38:08,952 away from a location, 745 00:38:09,052 --> 00:38:14,329 revealing an entire Neolithic village 746 00:38:14,529 --> 00:38:15,999 perfectly preserved, 747 00:38:16,066 --> 00:38:20,742 as if this is how it was left 5,000 years ago. 748 00:38:20,809 --> 00:38:25,317 It was like something out of The Flintstones, 749 00:38:25,417 --> 00:38:30,428 with these rooms containing stone chairs, 750 00:38:30,527 --> 00:38:35,004 stone beds, stone cupboards and mantelpieces. 751 00:38:35,070 --> 00:38:39,547 SHATNER: Constructed around the year 3000 BC, 752 00:38:39,680 --> 00:38:42,385 Skara Brae is believed to be older 753 00:38:42,552 --> 00:38:44,657 than the Great Pyramid of Giza. 754 00:38:44,690 --> 00:38:49,032 However, further excavations showed an astonishing connection 755 00:38:49,098 --> 00:38:54,910 between Skara Brae and the mysterious ancient stone circles 756 00:38:54,977 --> 00:38:58,752 that can be found throughout Great Britain and Ireland. 757 00:38:58,851 --> 00:39:02,459 The culture responsible for Skara Brae 758 00:39:02,559 --> 00:39:04,563 are known as the Grooved ware people, 759 00:39:04,597 --> 00:39:09,539 due to a very specific type of pottery that they created. 760 00:39:09,640 --> 00:39:13,548 And if you go to somewhere like Stonehenge, 761 00:39:13,615 --> 00:39:18,324 they found examples of ceramics that are identical 762 00:39:18,457 --> 00:39:21,931 to those that were found at Skara Brae. 763 00:39:22,064 --> 00:39:24,002 And that in itself is significant, 764 00:39:24,002 --> 00:39:24,035 And that in itself is significant, because it's very clear 765 00:39:24,035 --> 00:39:26,674 because it's very clear 766 00:39:26,741 --> 00:39:30,414 that the people on Orkney were gradually spreading out 767 00:39:30,582 --> 00:39:32,620 to cover the whole of Britain, 768 00:39:32,719 --> 00:39:35,525 building stone circles all over the country. 769 00:39:35,725 --> 00:39:39,465 Stonehenge, Avebury, 770 00:39:39,600 --> 00:39:42,405 Anglesey, Newgrange in Ireland-- 771 00:39:42,471 --> 00:39:46,781 all of these were the product of the culture 772 00:39:46,881 --> 00:39:49,953 that originally started with Skara Brae. 773 00:39:51,523 --> 00:39:53,126 GRAHAM PHILIPS: These huge stone circles 774 00:39:53,126 --> 00:39:53,160 GRAHAM PHILIPS: These huge stone circles obviously had some sort 775 00:39:53,160 --> 00:39:55,999 obviously had some sort 776 00:39:56,099 --> 00:39:59,607 of special significance to the builders. 777 00:39:59,673 --> 00:40:02,411 But they didn't have any form of writing to tell us 778 00:40:02,511 --> 00:40:04,617 why they were building stone circles. 779 00:40:04,750 --> 00:40:06,921 And so, the only way that we can 780 00:40:07,021 --> 00:40:11,129 reconstruct what these people were doing 781 00:40:11,162 --> 00:40:15,872 and the thinking behind it is by what they left behind. 782 00:40:15,939 --> 00:40:20,014 These big megalithic complexes that were built 783 00:40:20,114 --> 00:40:23,855 to exactly the same formula, and it all began 784 00:40:23,955 --> 00:40:28,464 on the Orkney Isles, and we don't know why. 785 00:40:28,698 --> 00:40:31,838 SHATNER: Will we ever learn what motivated the inhabitants 786 00:40:31,904 --> 00:40:36,614 of Skara Brae to build such elaborate stone circles? 787 00:40:36,747 --> 00:40:38,785 It's questions like these 788 00:40:38,851 --> 00:40:42,491 that keep archaeologists digging all over the world, 789 00:40:42,592 --> 00:40:45,965 in order to learn more about our ancestors 790 00:40:46,066 --> 00:40:51,477 and the mysterious structures they left behind. 791 00:40:51,610 --> 00:40:53,513 There are vast areas of the world, 792 00:40:53,614 --> 00:40:56,486 vast parts of Asia and Africa, for example, 793 00:40:56,554 --> 00:40:59,225 that are barely touched by archaeology even now. 794 00:40:59,292 --> 00:41:02,900 And there will certainly be all kinds of surprises, 795 00:41:02,966 --> 00:41:06,407 and endless strange things coming out of these areas 796 00:41:06,640 --> 00:41:10,548 which will completely change our view of that period of the past. 797 00:41:10,715 --> 00:41:12,451 NEWMAN: It does seem that 798 00:41:12,586 --> 00:41:14,724 the deeper we dig into our past, 799 00:41:14,823 --> 00:41:17,461 we are finding things that we can't explain. 800 00:41:17,696 --> 00:41:22,640 Sites and temples that shouldn't have been around at that time. 801 00:41:22,706 --> 00:41:25,244 And the further we explore, the mystery just gets 802 00:41:25,244 --> 00:41:27,616 deeper and deeper. 803 00:41:27,716 --> 00:41:31,591 Whether it's lost pyramids or abandoned tunnels 804 00:41:31,724 --> 00:41:33,928 or baffling stone artifacts, 805 00:41:34,028 --> 00:41:36,166 ancient structures have the uncanny power 806 00:41:36,266 --> 00:41:40,174 to capture our curiosity, and keep us wondering 807 00:41:40,174 --> 00:41:40,241 to capture our curiosity, and keep us wondering what secrets they might reveal. 808 00:41:40,241 --> 00:41:42,613 what secrets they might reveal. 809 00:41:42,746 --> 00:41:44,984 But no matter how much time or effort 810 00:41:45,117 --> 00:41:46,721 we spend trying to find and study 811 00:41:46,854 --> 00:41:50,762 and understand mysterious ruins, 812 00:41:50,862 --> 00:41:52,999 like many things from our past, they remain... 813 00:41:52,999 --> 00:41:53,000 like many things from our past, they remain... unexplained. 814 00:41:53,000 --> 00:41:55,538 unexplained. 815 00:41:55,672 --> 00:41:57,174 CAPTIONING PROVIDED BY A+E NETWORKS