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Because as we've seen
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Secrets of the Underground

Because as we've seen, Molten lava isn'tThe only lethal weapon

Because as we've seen, Molten lava isn't
The only lethal weapon

Full Transcript

00:00:01.000 --> 00:00:02.569
Because as we've seen,
00:00:02.057 --> 00:00:05.039
Molten lava isn't The only lethal weapon.
Duration
5 seconds
Views
14
Timestamp in Movie
00:21:43
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 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 • 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 • 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.
S01 • E01 So if there really was a staircase here, - Secrets of the Underground 00:06
So if there really was a staircase here,
S01 • E07 An unprecedented glimpse Of the turbulent and fiery world. - Secrets of the Underground 00:05
An unprecedented glimpse Of the turbulent and fiery world.
S01 • E08 (GULLS CAWING) - Secrets of the Underground 00:07
(GULLS CAWING)
S01 • E02 So this is another door that's been carved out. - Secrets of the Underground 00:04
So this is another door that's been carved out.
S01 • E07 Now from the high country Of eastern california, - Secrets of the Underground 00:07
Now from the high country Of eastern california,
S01 • E08 Is it possible they are still hidden somewhere else under the prison? - Secrets of the Underground 00:05
Is it possible they are still hidden somewhere else under th...