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OK, watch your head down here, this basement's really old and low
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Secrets of the Underground

OK, watch your head down here,this basement's really old and low

OK, watch your head down here,
this basement's really old and low

Full Transcript

00:00:01.000 --> 00:00:04.004
OK, watch your head down here, this basement's really old and low.
Duration
4 seconds
Views
16
Timestamp in Movie
00:20:16
Uploaded
Jul 09, 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 In this area underneath the rec yard, - Secrets of the Underground 00:06
In this area underneath the rec yard,
S01 • E07 In deadly Geologic activity here. - Secrets of the Underground 00:04
In deadly Geologic activity here.
S01 • E08 What's going on? Like, are they some sort of tunnels? - Secrets of the Underground 00:04
What's going on? Like, are they some sort of tunnels?
S01 • E03 Now from this hallowed ground outside of Philly, - Secrets of the Underground 00:11
Now from this hallowed ground outside of Philly,
S01 • E02 We're heading towards the street right now. - Secrets of the Underground 00:04
We're heading towards the street right now.
S01 • E08 Cycling through data sets from different decades, - Secrets of the Underground 00:11
Cycling through data sets from different decades,
S01 • E01 It had to have been from about there over, - Secrets of the Underground 00:06
It had to have been from about there over,
S01 • E02 Here's the door I was telling you about. Whoa, right there. - Secrets of the Underground 00:04
Here's the door I was telling you about. Whoa, right th...
S01 • E02 We're worried about a potential cave-in, - Secrets of the Underground 00:05
We're worried about a potential cave-in,
S01 • E08 These are earthen fortifications that cover brick structures. - Secrets of the Underground 00:06
These are earthen fortifications that cover brick structures...
S01 • E01 It's like we're figuring out this mystery as we go! As we go. - Secrets of the Underground 00:05
It's like we're figuring out this mystery as we go...
S01 • E07 Is definitely Some sort of liquid, - Secrets of the Underground 00:06
Is definitely Some sort of liquid,
S01 • E01 Oh wow, look at that. - Secrets of the Underground 00:04
Oh wow, look at that.
S01 • E02 Do you know exactly where this door is relative to the front? - Secrets of the Underground 00:05
Do you know exactly where this door is relative to the front...
S01 • E08 That structure there provided military personnel cover from fire coming from the ocean. - Secrets of the Underground 00:07
That structure there provided military personnel cover from ...
S01 • E03 It was a lake used as a location in the iconic film Dirty Dancing - Secrets of the Underground 00:08
It was a lake used as a location in the iconic film Dirty Da...
S01 • E01 I've never seen that. Let me crawl up here a little bit. - Secrets of the Underground 00:06
I've never seen that. Let me crawl up here a little bit...
S01 • E08 So, what we're seeing right here, underneath the rec yard, - Secrets of the Underground 00:07
So, what we're seeing right here, underneath the rec ya...
S01 • E03 For decades, thousands of families made Mountain Lake - Secrets of the Underground 00:06
For decades, thousands of families made Mountain Lake
S01 • E02 The tunnel appears to connect to another building across Blake Street. - Secrets of the Underground 00:06
The tunnel appears to connect to another building across Bla...