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Records show that during the airport's original construction
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Secrets of the Underground

Records show that duringthe airport's original construction, over 110 million cubic yards...

Records show that during
the airport's original construction, over 110 million cubic yards of earth
were removed from the ground

Full Transcript

00:00:01.000 --> 00:00:04.036
Records show that during the airport's original construction,
00:00:04.044 --> 00:00:09.012
over 110 million cubic yards of earth were removed from the ground.
Duration
9 seconds
Views
20
Timestamp in Movie
00:04:17
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 • E01 Looks like it was carved out by explosives or something. - Secrets of the Underground 00:05
Looks like it was carved out by explosives or something.
S01 • E08 The downside was you could spend up to 23 hours a day in these cells. - Secrets of the Underground 00:06
The downside was you could spend up to 23 hours a day in the...
S01 • E03 BILL: The unfortunate scenario for our men, average age 22... - Secrets of the Underground 00:05
BILL: The unfortunate scenario for our men, average age 22.....
S01 • E01 And what is this? Is this a sewer system, or...? - Secrets of the Underground 00:04
And what is this? Is this a sewer system, or...?
S01 • E02 That's enough to cover 32 city blocks a quarter-mile deep. - Secrets of the Underground 00:05
That's enough to cover 32 city blocks a quarter-mile de...
S01 • E01 Well, at one time this tunnel stretched much further. - Secrets of the Underground 00:05
Well, at one time this tunnel stretched much further.
S01 • E03 Probably about 25 cents a day at most, - Secrets of the Underground 00:10
Probably about 25 cents a day at most,
S01 • E08 Wow. These rooms are so tiny. - Secrets of the Underground 00:05
Wow. These rooms are so tiny.
S01 • E02 And it seems like far more than would be needed - Secrets of the Underground 00:07
And it seems like far more than would be needed
S01 • E01 Over the years, they have built walls and concrete - Secrets of the Underground 00:10
Over the years, they have built walls and concrete
S01 • E08 One bed, a place to wash your hands, a place to use the toilet. - Secrets of the Underground 00:05
One bed, a place to wash your hands, a place to use the toil...
S01 • E02 So where did all this dirt come from and what's there now? - Secrets of the Underground 00:04
So where did all this dirt come from and what's there n...
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 • 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...