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Secrets of the Underground

It will tell us if thereare any changes in depth behind the brick that couldsignify a...

It will tell us if there
are any changes in depth behind the brick that could
signify a tunnel or passageway

Full Transcript

00:00:01.000 --> 00:00:03.004
It will tell us if there are any changes in depth
00:00:03.048 --> 00:00:07.044
behind the brick that could signify a tunnel or passageway.
Duration
7 seconds
Views
16
Timestamp in Movie
00:09:42
Uploaded
Jul 13, 2025
Season
1
Episode
8
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 • E07 In other parts Of the 200-square mile cauldron. - Secrets of the Underground 00:04
In other parts Of the 200-square mile cauldron.
S01 • E01 He preferred the gentlemen's poker room, which was more private. - Secrets of the Underground 00:04
He preferred the gentlemen's poker room, which was more...
S01 • E02 Will ground penetrating radar reveal that human remains are buried inside? - Secrets of the Underground 00:05
Will ground penetrating radar reveal that human remains are ...
S01 • E03 And they hit the mass grave and that would have freaked them out. - Secrets of the Underground 00:05
And they hit the mass grave and that would have freaked them...
S01 • E01 But it was on the second floor, - Secrets of the Underground 00:07
But it was on the second floor,
S01 • E08 Right up here looks fairly...clear, - Secrets of the Underground 00:07
Right up here looks fairly...clear,
S01 • E03 If we can figure out where the missing men were moved to, - Secrets of the Underground 00:10
If we can figure out where the missing men were moved to,
S01 • E07 Just across the valley From hot creek, - Secrets of the Underground 00:04
Just across the valley From hot creek,
S01 • E01 If police raided the hotel looking for Capone, which they often did, - Secrets of the Underground 00:09
If police raided the hotel looking for Capone, which they of...
S01 • E08 Oh, look, there you go, you can see something right there. - Secrets of the Underground 00:05
Oh, look, there you go, you can see something right there.
S01 • E01 I think this hotel may be hiding even more than its underground tunnels. - Secrets of the Underground 00:05
I think this hotel may be hiding even more than its undergro...
S01 • E07 I trekked 15 miles west to The site of an infamous tragedy. - Secrets of the Underground 00:04
I trekked 15 miles west to The site of an infamous tragedy.
S01 • E03 The grave may be too deep for GPR to accurately detect it, - Secrets of the Underground 00:12
The grave may be too deep for GPR to accurately detect it,
S01 • E02 I'm looking into a series of tunnels - Secrets of the Underground 00:10
I'm looking into a series of tunnels
S01 • E01 Could there be a secret staircase from the poker room to the basement? - Secrets of the Underground 00:05
Could there be a secret staircase from the poker room to the...
S01 • E07 That took place in 2006. - Secrets of the Underground 00:04
That took place in 2006.
S01 • E08 (GPR BEEPING) - Secrets of the Underground 00:05
(GPR BEEPING)
S01 • E07 In the wake of a blizzard That year, - Secrets of the Underground 00:07
In the wake of a blizzard That year,
S01 • E01 To trace the escape route of Al Capone, - Secrets of the Underground 00:05
To trace the escape route of Al Capone,
S01 • E07 But it turns out, This wasn't just any old crater. - Secrets of the Underground 00:04
But it turns out, This wasn't just any old crater.