If you look here, you can seethe wood steps on the bottom, and right there, and there's...
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If you look here, you can see
the wood steps on the bottom, and right there, and there's like
a little bit of a cove, dug out
the wood steps on the bottom, and right there, and there's like
a little bit of a cove, dug out
Full Transcript
00:00:01.000 --> 00:00:03.092
If you look here, you can see
the wood steps on the bottom,
00:00:04.000 --> 00:00:09.999
and right there, and there's like
a little bit of a cove, dug out.
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Movie Summary
Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
