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Then, under the Capitol was a massive off-grid heating system
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Secrets of the Underground

Then, under the Capitol wasa massive off-grid heating system and a labyrinth with no...

Then, under the Capitol was
a massive off-grid heating system and a labyrinth with no map
that dead-ended in new drywall

Full Transcript

00:00:01.000 --> 00:00:04.064
Then, under the Capitol was a massive off-grid heating system
00:00:04.072 --> 00:00:09.024
and a labyrinth with no map that dead-ended in new drywall.
Duration
9 seconds
Views
12
Timestamp in Movie
00:19:22
Uploaded
Jul 09, 2025
Season
1
Episode
2
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 So, this is on top, as best we could, the geographic location of where Alcatraz is now - Secrets of the Underground 00:09
So, this is on top, as best we could, the geographic locatio...
S01 • E07 Is coming back to life, - Secrets of the Underground 00:08
Is coming back to life,
S01 • E03 Based on what she's seen in the existing skulls, - Secrets of the Underground 00:07
Based on what she's seen in the existing skulls,
S01 • E01 On one occasion, he was sitting at the bar - Secrets of the Underground 00:08
On one occasion, he was sitting at the bar
S01 • E03 And that railroad officials covered up the killings - Secrets of the Underground 00:07
And that railroad officials covered up the killings
S01 • E02 The Internet has all sorts of theories, - Secrets of the Underground 00:05
The Internet has all sorts of theories,
S01 • E08 Then he digitises the contour lines that show elevation. - Secrets of the Underground 00:05
Then he digitises the contour lines that show elevation.
S01 • E01 Oh, really? He'd write notes on cocktail napkins - Secrets of the Underground 00:05
Oh, really? He'd write notes on cocktail napkins
S01 • E08 Those each have an assigned value, - Secrets of the Underground 00:09
Those each have an assigned value,
S01 • E07 So, we, basically, From that other peak scouted. - Secrets of the Underground 00:04
So, we, basically, From that other peak scouted.
S01 • E02 So I'm heading for one more focal point - Secrets of the Underground 00:08
So I'm heading for one more focal point
S01 • E01 So Al Capone would have come down through here, in theory? - Secrets of the Underground 00:04
So Al Capone would have come down through here, in theory?
S01 • E03 Because they absolutely have a mandate, - Secrets of the Underground 00:09
Because they absolutely have a mandate,
S01 • E07 Out this resurgent dome, - Secrets of the Underground 00:06
Out this resurgent dome,
S01 • E01 Our pursuit of Capone's escape route - Secrets of the Underground 00:08
Our pursuit of Capone's escape route
S01 • E02 If I can gain access to the tunnels rumoured to be beneath it, - Secrets of the Underground 00:11
If I can gain access to the tunnels rumoured to be beneath i...
S01 • E08 So, then we get a view of the island... Oh, awesome. - Secrets of the Underground 00:04
So, then we get a view of the island... Oh, awesome.
S01 • E07 We only have A little bit of time, - Secrets of the Underground 00:08
We only have A little bit of time,
S01 • E03 The story of these workers was a tragic circumstance - Secrets of the Underground 00:08
The story of these workers was a tragic circumstance
S01 • E08 So, what we can do is drape over the current buildings and topography. - Secrets of the Underground 00:05
So, what we can do is drape over the current buildings and t...