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Aren't the prelude to another Supervolcanic eruptions
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Secrets of the Underground

Aren't the prelude to anotherSupervolcanic eruptions, But that's not necessarilyThe huge...

Aren't the prelude to another
Supervolcanic eruptions, But that's not necessarily
The huge relief it should be

Full Transcript

00:00:01.000 --> 00:00:04.329
Aren't the prelude to another Supervolcanic eruptions,
00:00:04.033 --> 00:00:07.469
But that's not necessarily The huge relief it should be.
Duration
7 seconds
Views
15
Timestamp in Movie
00:21:36
Uploaded
Jul 09, 2025
Season
1
Episode
7
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 • E03 It's almost hard to imagine that 80ft over our head - Secrets of the Underground 00:08
It's almost hard to imagine that 80ft over our head
S01 • E08 But it appears there was no way out underground after all. - Secrets of the Underground 00:04
But it appears there was no way out underground after all.
S01 • E02 I think if we removed this door, it would collapse for sure. - Secrets of the Underground 00:05
I think if we removed this door, it would collapse for sure.
S01 • E01 He was said to stand around 5'10" and weigh as much as 260lbs. - Secrets of the Underground 00:05
He was said to stand around 5'10" and weigh as muc...
S01 • E08 So that must be why the only prisoners ever to escape from The Rock - Secrets of the Underground 00:07
So that must be why the only prisoners ever to escape from T...
S01 • E07 Because as we've seen, - Secrets of the Underground 00:05
Because as we've seen,
S01 • E02 It's filled in with cobblestone and sandy dirt, - Secrets of the Underground 00:08
It's filled in with cobblestone and sandy dirt,
S01 • E03 This is like basically at the bottom of where the old lake was. - Secrets of the Underground 00:06
This is like basically at the bottom of where the old lake w...
S01 • E01 It would have been especially tight for someone the size of Capone, - Secrets of the Underground 00:07
It would have been especially tight for someone the size of ...
S01 • E08 In 1962, three inmates dug through their cell walls with sharpened spoons - Secrets of the Underground 00:13
In 1962, three inmates dug through their cell walls with sha...
S01 • E03 What makes this puzzle even weirder - Secrets of the Underground 00:07
What makes this puzzle even weirder
S01 • E01 We've got stairs right there, - Secrets of the Underground 00:12
We've got stairs right there,
S01 • E07 In superheated ground water, Toxic-gas emissions, - Secrets of the Underground 00:08
In superheated ground water, Toxic-gas emissions,
S01 • E02 (EXHALES) - Secrets of the Underground 00:06
(EXHALES)
S01 • E03 Today, it's only about 30% as deep as it was when it was full. - Secrets of the Underground 00:06
Today, it's only about 30% as deep as it was when it wa...
S01 • E08 They then made their way to the bay where they set sail on a makeshift raft, - Secrets of the Underground 00:07
They then made their way to the bay where they set sail on a...
S01 • E02 But I can see a ceiling to this. - Secrets of the Underground 00:04
But I can see a ceiling to this.
S01 • E02 I don't want to hit the wrong thing and make it all collapse. - Secrets of the Underground 00:04
I don't want to hit the wrong thing and make it all col...
S01 • E03 When this 47-acre lake dried up in 2008, business did, too, - Secrets of the Underground 00:12
When this 47-acre lake dried up in 2008, business did, too,
S01 • E08 The following year, The Rock closed its doors forever. - Secrets of the Underground 00:05
The following year, The Rock closed its doors forever.