So you can't tellif there's a staircase, but you can tell that this probablyisn't the...
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So you can't tell
if there's a staircase, but you can tell that this probably
isn't the original floor
if there's a staircase, but you can tell that this probably
isn't the original floor
Full Transcript
00:00:01.000 --> 00:00:03.004
So you can't tell
if there's a staircase,
00:00:03.012 --> 00:00:05.096
but you can tell that this probably
isn't the original floor.
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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...
