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And that railroad officials covered up the killings
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Secrets of the Underground

And that railroad officialscovered up the killings to protect their effortsto recruit more...

And that railroad officials
covered up the killings to protect their efforts
to recruit more cheap labour

Full Transcript

00:00:01.000 --> 00:00:03.056
And that railroad officials covered up the killings
00:00:03.064 --> 00:00:07.002
to protect their efforts to recruit more cheap labour.
Duration
7 seconds
Views
21
Timestamp in Movie
00:19:32
Uploaded
Jul 08, 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 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 • E02 The Internet has all sorts of theories, - Secrets of the Underground 00:05
The Internet has all sorts of theories,
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 • 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 • E07 So, we, basically, From that other peak scouted. - Secrets of the Underground 00:04
So, we, basically, From that other peak scouted.
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 • 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 • E01 Our pursuit of Capone's escape route - Secrets of the Underground 00:08
Our pursuit of Capone's escape route
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...
S01 • E01 We're actually one-and-a-half floors underground, - Secrets of the Underground 00:07
We're actually one-and-a-half floors underground,
S01 • E03 And though we may never know for certain what really happened to the workers, - Secrets of the Underground 00:17
And though we may never know for certain what really happene...
S01 • E07 We'll be able to detect If there's liquid underground. - Secrets of the Underground 00:05
We'll be able to detect If there's liquid undergro...
S01 • E08 From here, we can look at Alcatraz and how it's changed. - Secrets of the Underground 00:04
From here, we can look at Alcatraz and how it's changed...
S01 • E02 One of the buildings rumoured to have a tunnel entrance beneath it - Secrets of the Underground 00:06
One of the buildings rumoured to have a tunnel entrance bene...