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There are claims that hidden deep under the city
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Secrets of the Underground

There are claims thathidden deep under the city is a secret network of tunnels

There are claims that
hidden deep under the city is a secret network of tunnels

Full Transcript

00:00:01.000 --> 00:00:03.048
There are claims that hidden deep under the city
00:00:03.056 --> 00:00:05.068
is a secret network of tunnels.
Duration
6 seconds
Views
24
Timestamp in Movie
00:01:24
Uploaded
Jul 08, 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 Built on a 22-acre island surrounded by the frigid San Francisco Bay, - Secrets of the Underground 00:14
Built on a 22-acre island surrounded by the frigid San Franc...
S01 • E01 But this southern jewel of the blue grass state - Secrets of the Underground 00:06
But this southern jewel of the blue grass state
S01 • E02 And rumours have swirled about the existence of tunnel entrances - Secrets of the Underground 00:09
And rumours have swirled about the existence of tunnel entra...
S01 • E01 This birthplace of America's only native whiskey - Secrets of the Underground 00:11
This birthplace of America's only native whiskey
S01 • E03 According to locals, this area is the site of a mass grave. - Secrets of the Underground 00:04
According to locals, this area is the site of a mass grave.
S01 • E02 Under the airport, - Secrets of the Underground 00:07
Under the airport,
S01 • E03 The final resting place of dozens of Irish immigrants - Secrets of the Underground 00:10
The final resting place of dozens of Irish immigrants
S01 • E08 Its location and design made it almost impossible for inmates to escape, - Secrets of the Underground 00:08
Its location and design made it almost impossible for inmate...
S01 • E01 Yet for nearly a decade, he conducted his illicit booze trade - Secrets of the Underground 00:07
Yet for nearly a decade, he conducted his illicit booze trad...
S01 • E02 Conspiracy theorists have made wild assertions that these tunnels - Secrets of the Underground 00:10
Conspiracy theorists have made wild assertions that these tu...
S01 • E08 Over the decades, there were at least 14 separate escape attempts - Secrets of the Underground 00:07
Over the decades, there were at least 14 separate escape att...
S01 • E01 Whenever one of his preferred hangouts was raided, - Secrets of the Underground 00:05
Whenever one of his preferred hangouts was raided,
S01 • E03 Were they innocent victims of disease, - Secrets of the Underground 00:06
Were they innocent victims of disease,
S01 • E01 Witnesses claimed he'd be there one minute, - Secrets of the Underground 00:07
Witnesses claimed he'd be there one minute,
S01 • E02 I'm not sure I buy into these claims, - Secrets of the Underground 00:08
I'm not sure I buy into these claims,
S01 • E08 Many had heard about a legendary network of tunnels - Secrets of the Underground 00:07
Many had heard about a legendary network of tunnels
S01 • E01 So how did Capone continue his illegal operation for over a decade - Secrets of the Underground 00:07
So how did Capone continue his illegal operation for over a ...
S01 • E03 With the latest hi-tech imaging tools, - Secrets of the Underground 00:10
With the latest hi-tech imaging tools,
S01 • E02 So I'm going to use cutting-edge technology - Secrets of the Underground 00:06
So I'm going to use cutting-edge technology
S01 • E08 In 1944, he was working a detail in the kitchen - Secrets of the Underground 00:07
In 1944, he was working a detail in the kitchen