Right now it looks likewe're looking at an arch that's 18 feet long and thebottom of it is...
Join the conversation
Log in or create an account to leave a comment
Log In
Right now it looks like
we're looking at an arch that's 18 feet long and the
bottom of it is roughly 51 inches, so it's about four feet
and going all the way up
we're looking at an arch that's 18 feet long and the
bottom of it is roughly 51 inches, so it's about four feet
and going all the way up
Full Transcript
00:00:01.000 --> 00:00:03.052
Right now it looks like
we're looking at an arch
00:00:03.006 --> 00:00:08.016
that's 18 feet long and the
bottom of it is roughly 51 inches,
00:00:08.024 --> 00:00:12.052
so it's about four feet
and going all the way up...
Want This Clip in HD?
Upgrade for HD/4K downloads and unlimited access. Upgrade now →
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...
