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In this particular area, there's a lot of seismic activity,
right?
right?
Full Transcript
00:00:01.000 --> 00:00:03.002
In this particular area,
00:00:03.028 --> 00:00:07.004
there's a lot of seismic activity,
right?
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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...