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So where did all this dirt come from and what's there now?
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Secrets of the Underground

So where did all this dirt come fromand what's there now?

So where did all this dirt come from
and what's there now?

Full Transcript

00:00:01.000 --> 00:00:04.036
So where did all this dirt come from and what's there now?
Duration
4 seconds
Views
17
Timestamp in Movie
00:04:35
Uploaded
Jul 12, 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 If I was in a room like this - Secrets of the Underground 00:09
If I was in a room like this
S01 • E03 Yet strangely, even though the confidential company files reveal - Secrets of the Underground 00:13
Yet strangely, even though the confidential company files re...
S01 • E02 I decide to investigate on my own - Secrets of the Underground 00:07
I decide to investigate on my own
S01 • E01 Oh! This is cool. - Secrets of the Underground 00:05
Oh! This is cool.
S01 • E08 One of the most notorious breakout attempts was in May 1946, - Secrets of the Underground 00:10
One of the most notorious breakout attempts was in May 1946,
S01 • E02 And right away, I'm struck by the peculiar symbols - Secrets of the Underground 00:06
And right away, I'm struck by the peculiar symbols
S01 • E01 It looks to me like this was a much bigger cave, - Secrets of the Underground 00:10
It looks to me like this was a much bigger cave,
S01 • E02 There's, like, a whole bunch of things here at the airport that are really odd. - Secrets of the Underground 00:05
There's, like, a whole bunch of things here at the airp...
S01 • E03 If disease was to blame, why were so many of the deaths kept secret? - Secrets of the Underground 00:05
If disease was to blame, why were so many of the deaths kept...
S01 • E08 It was dubbed "the Battle of Alcatraz". - Secrets of the Underground 00:04
It was dubbed "the Battle of Alcatraz".
S01 • E02 Exhibit A, a series of giant murals - Secrets of the Underground 00:08
Exhibit A, a series of giant murals
S01 • E03 So, this particular document points to 57 people dying here, - Secrets of the Underground 00:08
So, this particular document points to 57 people dying here,
S01 • E08 If you look at the walls, those are all scars...shrapnel, - Secrets of the Underground 00:09
If you look at the walls, those are all scars...shrapnel,
S01 • E01 Whoa. What is this? - Secrets of the Underground 00:04
Whoa. What is this?
S01 • E01 I think those are utility pipes - Secrets of the Underground 00:07
I think those are utility pipes
S01 • E03 Where are they and why would they have tried to cover up this incident? - Secrets of the Underground 00:05
Where are they and why would they have tried to cover up thi...
S01 • E02 Some of this symbolism really is kind of weird. - Secrets of the Underground 00:04
Some of this symbolism really is kind of weird.
S01 • E08 The uprising was so well executed - Secrets of the Underground 00:07
The uprising was so well executed
S01 • E02 The artist Leo Tanguma says airport officials gave him - Secrets of the Underground 00:10
The artist Leo Tanguma says airport officials gave him
S01 • E01 Really? So when Al Capone was alive, - Secrets of the Underground 00:08
Really? So when Al Capone was alive,