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If this were to collapse and it could just trap your hand or something
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Secrets of the Underground

If this were to collapseand it could just trapyour hand or something

If this were to collapse
and it could just trap
your hand or something

Full Transcript

00:00:01.000 --> 00:00:04.048
If this were to collapse and it could just trap your hand or something...
Duration
4 seconds
Views
13
Timestamp in Movie
00:33:38
Uploaded
Jul 09, 2025
Season
1
Episode
3
Genres
documentary

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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...
S01 • E07 As the name spelled In greek letters - Secrets of the Underground 00:08
As the name spelled In greek letters
S01 • E02 The onscreen data spikes, - Secrets of the Underground 00:06
The onscreen data spikes,
S01 • E01 I'm putting that theory to the test - Secrets of the Underground 00:08
I'm putting that theory to the test
S01 • E08 Yeah, I mean, erm...honestly, it is really hard to see. - Secrets of the Underground 00:04
Yeah, I mean, erm...honestly, it is really hard to see.
S01 • E02 Could this be the first glimpse of an ancient clue - Secrets of the Underground 00:07
Could this be the first glimpse of an ancient clue
S01 • E07 An ogham sign for "Lord." - Secrets of the Underground 00:05
An ogham sign for "Lord."
S01 • E01 Look at that! All of a sudden it's forming mounds on the surface. - Secrets of the Underground 00:05
Look at that! All of a sudden it's forming mounds on th...
S01 • E03 It's freezing cold, very cold. - Secrets of the Underground 00:04
It's freezing cold, very cold.
S01 • E07 Vance thinks It's highly unlikely, - Secrets of the Underground 00:06
Vance thinks It's highly unlikely,
S01 • E01 Right down here, you can see what looks exactly like the Mima Mounds, - Secrets of the Underground 00:08
Right down here, you can see what looks exactly like the Mim...
S01 • E03 The ROV's umbilical leads me toward the trapped sub... - Secrets of the Underground 00:05
The ROV's umbilical leads me toward the trapped sub...
S01 • E08 We're just going down, looking and taking pictures. OK. - Secrets of the Underground 00:04
We're just going down, looking and taking pictures. OK.
S01 • E02 I'm using ground penetrating radar - Secrets of the Underground 00:06
I'm using ground penetrating radar
S01 • E08 Mark and Hank have agreed to allow just one dive to the site. - Secrets of the Underground 00:05
Mark and Hank have agreed to allow just one dive to the site...
S01 • E02 And I've just come across an underground anomaly - Secrets of the Underground 00:07
And I've just come across an underground anomaly
S01 • E07 In connecticut 1,500 years ago, - Secrets of the Underground 00:06
In connecticut 1,500 years ago,
S01 • E01 The problem is, I'm not sure if this scales up to a larger level, - Secrets of the Underground 00:09
The problem is, I'm not sure if this scales up to a lar...
S01 • E03 It's wedged deep in what appears to be a kind of tunnel. - Secrets of the Underground 00:05
It's wedged deep in what appears to be a kind of tunnel...
S01 • E08 If I'm going to solve the mystery of this underwater Stonehenge, - Secrets of the Underground 00:05
If I'm going to solve the mystery of this underwater St...
S01 • E07 The 6th century irish Were expert seafarers, - Secrets of the Underground 00:07
The 6th century irish Were expert seafarers,