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During that period, they were exposed to the atmosphere
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Secrets of the Underground

During that period,they were exposed to the atmosphere, to moisture and oxygen, so that's...

During that period,
they were exposed to the atmosphere, to moisture and oxygen, so that's going to start
the decay process all over again

Full Transcript

00:00:01.000 --> 00:00:03.068
During that period, they were exposed to the atmosphere,
00:00:03.076 --> 00:00:05.004
to moisture and oxygen,
00:00:05.012 --> 00:00:08.012
so that's going to start the decay process all over again.
Duration
8 seconds
Views
13
Timestamp in Movie
00:11:33
Uploaded
Jul 13, 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 • E08 As I work my way along the dungeon's outer wall, - Secrets of the Underground 00:07
As I work my way along the dungeon's outer wall,
S01 • E01 And this was kind of the headquarters of the booze-trading - Secrets of the Underground 00:08
And this was kind of the headquarters of the booze-trading
S01 • E03 So, we're also searching for cavities of air - Secrets of the Underground 00:10
So, we're also searching for cavities of air
S01 • E07 Right there. - Secrets of the Underground 00:04
Right there.
S01 • E01 We think both George Remus and Al Capone - Secrets of the Underground 00:12
We think both George Remus and Al Capone
S01 • E02 Now, here's something you wouldn't see under most government buildings. - Secrets of the Underground 00:05
Now, here's something you wouldn't see under most ...
S01 • E08 But the thermal readings still aren't giving me enough detail - Secrets of the Underground 00:06
But the thermal readings still aren't giving me enough ...
S01 • E03 As it decays and collapses, - Secrets of the Underground 00:05
As it decays and collapses,
S01 • E02 This state-of-the-art heating system, installed in 2013, - Secrets of the Underground 00:09
This state-of-the-art heating system, installed in 2013,
S01 • E07 Three ski patrol Lost their life. - Secrets of the Underground 00:04
Three ski patrol Lost their life.
S01 • E03 Currents flow easily through damp soil, - Secrets of the Underground 00:06
Currents flow easily through damp soil,
S01 • E07 The danger here Is plainly visible, - Secrets of the Underground 00:05
The danger here Is plainly visible,
S01 • E02 It costs six million dollars, - Secrets of the Underground 00:07
It costs six million dollars,
S01 • E02 Colorado is the only State Capitol building in the country - Secrets of the Underground 00:08
Colorado is the only State Capitol building in the country
S01 • E01 I've heard the legends - Secrets of the Underground 00:10
I've heard the legends
S01 • E07 So, carbon dioxide, Right at the moment, - Secrets of the Underground 00:06
So, carbon dioxide, Right at the moment,
S01 • E02 For those who believe there's something top-secret - Secrets of the Underground 00:07
For those who believe there's something top-secret
S01 • E03 But then it's very simple because what we can do is run the algorithm. - Secrets of the Underground 00:05
But then it's very simple because what we can do is run...
S01 • E01 Now, if he was here, in this room, then how would he do that? - Secrets of the Underground 00:05
Now, if he was here, in this room, then how would he do that...
S01 • E03 The data collected from the currents - Secrets of the Underground 00:06
The data collected from the currents