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Now from this hallowed ground outside of Philly
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Secrets of the Underground

Now from this hallowed groundoutside of Philly, I'm heading south to theBlue Ridge...

Now from this hallowed ground
outside of Philly, I'm heading south to the
Blue Ridge Mountains of Virginia where the filming location of an
iconic movie is steeped in mystery

Full Transcript

00:00:01.000 --> 00:00:03.008
Now from this hallowed ground outside of Philly,
00:00:03.088 --> 00:00:07.036
I'm heading south to the Blue Ridge Mountains of Virginia
00:00:07.044 --> 00:00:11.024
where the filming location of an iconic movie is steeped in mystery.
Duration
11 seconds
Views
21
Timestamp in Movie
00:20:25
Uploaded
Jul 12, 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 • E08 Cycling through data sets from different decades, - Secrets of the Underground 00:11
Cycling through data sets from different decades,
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 • 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 • 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 • 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 • E01 Oh wow, look at that. - Secrets of the Underground 00:04
Oh wow, look at that.
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...
S01 • E08 Wow, and just like that, the tunnels are relegated to myth once again. - Secrets of the Underground 00:06
Wow, and just like that, the tunnels are relegated to myth o...
S01 • E03 Then, in 2002, something bizarre started happening. - Secrets of the Underground 00:05
Then, in 2002, something bizarre started happening.
S01 • E01 We're in the Seelbach Hotel, Louisville, Kentucky, - Secrets of the Underground 00:12
We're in the Seelbach Hotel, Louisville, Kentucky,
S01 • E07 Of superheated fluids beneath This long, dormant supervolcano. - Secrets of the Underground 00:05
Of superheated fluids beneath This long, dormant supervolcan...