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Secrets of the Underground

This isthe Pennsylvania Railroad file on the story of the mass grave here

This is
the Pennsylvania Railroad file on the story of the mass grave here

Full Transcript

00:00:01.000 --> 00:00:03.076
This is the Pennsylvania Railroad file
00:00:03.084 --> 00:00:05.084
on the story of the mass grave here.
Duration
6 seconds
Views
21
Timestamp in Movie
00:02:51
Uploaded
Jul 09, 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 At the end of the day, this is a major international airport - Secrets of the Underground 00:10
At the end of the day, this is a major international airport
S01 • E08 Including a mysterious network of tunnels - Secrets of the Underground 00:10
Including a mysterious network of tunnels
S01 • E01 Notable guests included FDR, JFK and the Rolling Stones. - Secrets of the Underground 00:06
Notable guests included FDR, JFK and the Rolling Stones.
S01 • E03 The papers tell of the construction - Secrets of the Underground 00:06
The papers tell of the construction
S01 • E01 F Scott Fitzgerald used the Seelbach - Secrets of the Underground 00:07
F Scott Fitzgerald used the Seelbach
S01 • E02 1,000 people? There's about 1,000 people who work in the tunnels. - Secrets of the Underground 00:04
1,000 people? There's about 1,000 people who work in th...
S01 • E08 Today, I'm betting GPR can help us - Secrets of the Underground 00:09
Today, I'm betting GPR can help us
S01 • E01 The title character was based on the real-life gangsters he saw here, - Secrets of the Underground 00:09
The title character was based on the real-life gangsters he ...
S01 • E02 I know that's not gonna help our case - Secrets of the Underground 00:06
I know that's not gonna help our case
S01 • E03 So, this whole thing goes back to an incident that happened - Secrets of the Underground 00:06
So, this whole thing goes back to an incident that happened
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