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On a frigid night like tonight
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Secrets of the Underground

On a frigid night like tonight, any tunnel or passagewaybehind these walls will register...

On a frigid night like tonight, any tunnel or passageway
behind these walls will register on the colder side

Full Transcript

00:00:01.000 --> 00:00:02.006
On a frigid night like tonight,
00:00:02.068 --> 00:00:05.002
any tunnel or passageway behind these walls
00:00:05.028 --> 00:00:07.036
will register on the colder side.
Duration
7 seconds
Views
20
Timestamp in Movie
00:11:29
Uploaded
Jul 09, 2025
Season
1
Episode
8
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 • E01 This is now called the Oak Room, - Secrets of the Underground 00:06
This is now called the Oak Room,
S01 • E03 During that period, they were exposed to the atmosphere, - Secrets of the Underground 00:08
During that period, they were exposed to the atmosphere,
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...