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So, this whole thing goes back to an incident that happened
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Secrets of the Underground

So, this whole thing goes backto an incident that happened when the railroad was built

So, this whole thing goes back
to an incident that happened when the railroad was built

Full Transcript

00:00:01.000 --> 00:00:04.024
So, this whole thing goes back to an incident that happened
00:00:04.032 --> 00:00:05.068
when the railroad was built.
Duration
6 seconds
Views
24
Timestamp in Movie
00:03:10
Uploaded
Jul 12, 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 • E02 So, this clearly isn't the first time Heath has heard these questions. - Secrets of the Underground 00:05
So, this clearly isn't the first time Heath has heard t...
S01 • E03 What we know here is that a total of 57 Irish railroad workers - Secrets of the Underground 00:10
What we know here is that a total of 57 Irish railroad worke...
S01 • E01 In the Prohibition era of the 1920s, - Secrets of the Underground 00:07
In the Prohibition era of the 1920s,
S01 • E08 My first stop is the main cellblock, - Secrets of the Underground 00:06
My first stop is the main cellblock,
S01 • E02 After all, strict access procedures are now in place - Secrets of the Underground 00:07
After all, strict access procedures are now in place
S01 • E01 After picking up a new supply of bourbon and moonshine, - Secrets of the Underground 00:08
After picking up a new supply of bourbon and moonshine,
S01 • E08 Meeting me there is Alcatraz historian John Martini. - Secrets of the Underground 00:05
Meeting me there is Alcatraz historian John Martini.
S01 • E03 And we're at the site of the most difficult mile in that entire system. - Secrets of the Underground 00:04
And we're at the site of the most difficult mile in tha...
S01 • E02 But I have to wonder, - Secrets of the Underground 00:11
But I have to wonder,
S01 • E03 In 1832, a contractor named Philip Duffy - Secrets of the Underground 00:07
In 1832, a contractor named Philip Duffy
S01 • E01 From here, cash and contraband were allegedly funnelled underground, - Secrets of the Underground 00:08
From here, cash and contraband were allegedly funnelled unde...
S01 • E01 This is the legend. But did it really happen? - Secrets of the Underground 00:04
This is the legend. But did it really happen?
S01 • E02 In my research, I discovered some odd facts about Denver International. - Secrets of the Underground 00:06
In my research, I discovered some odd facts about Denver Int...
S01 • E03 The area's hilly terrain made it one of the railroad's toughest stretches. - Secrets of the Underground 00:05
The area's hilly terrain made it one of the railroad�...
S01 • E08 Since the mid-19th century, Alcatraz has been synonymous with outlaws. - Secrets of the Underground 00:05
Since the mid-19th century, Alcatraz has been synonymous wit...
S01 • E02 Facts that have fuelled rumours - Secrets of the Underground 00:06
Facts that have fuelled rumours
S01 • E03 To build what came to be known as Duffy's Cut, - Secrets of the Underground 00:06
To build what came to be known as Duffy's Cut,
S01 • E08 During the Civil War, Confederate sympathisers - Secrets of the Underground 00:06
During the Civil War, Confederate sympathisers
S01 • E02 Despite being only the sixth-busiest airport in the US, - Secrets of the Underground 00:11
Despite being only the sixth-busiest airport in the US,
S01 • E01 So I journey with hotel representative Jim Meyer - Secrets of the Underground 00:09
So I journey with hotel representative Jim Meyer