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Our GPR data reveals some curious irregularities
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Secrets of the Underground

Our GPR data revealssome curious irregularities in the materials beneath this floor

Our GPR data reveals
some curious irregularities in the materials beneath this floor

Full Transcript

00:00:01.000 --> 00:00:04.048
Our GPR data reveals some curious irregularities
00:00:04.056 --> 00:00:06.036
in the materials beneath this floor.
Duration
6 seconds
Views
14
Timestamp in Movie
00:16:20
Uploaded
Jul 10, 2025
Season
1
Episode
1
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 I'm in mammoth lakes, California, - Secrets of the Underground 00:09
I'm in mammoth lakes, California,
S01 • E03 This is actually probably an axe wound. - Secrets of the Underground 00:04
This is actually probably an axe wound.
S01 • E08 They don't appear to be something that is really natural, - Secrets of the Underground 00:06
They don't appear to be something that is really natura...
S01 • E01 What I interpret from the data you've scanned - Secrets of the Underground 00:06
What I interpret from the data you've scanned
S01 • E03 Janet sees compelling evidence that they were inflicted - Secrets of the Underground 00:06
Janet sees compelling evidence that they were inflicted
S01 • E02 I'm standing maybe 200ft away from the Capitol building. - Secrets of the Underground 00:04
I'm standing maybe 200ft away from the Capitol building...
S01 • E08 It looks like it could be a tunnel - Secrets of the Underground 00:06
It looks like it could be a tunnel
S01 • E02 This tunnel is heading into the Downtown area, it seems like. - Secrets of the Underground 00:05
This tunnel is heading into the Downtown area, it seems like...
S01 • E03 After the person was dead, this would have shattered the skull. - Secrets of the Underground 00:05
After the person was dead, this would have shattered the sku...
S01 • E07 An imminent eruption scattered Throughout this valley, - Secrets of the Underground 00:06
An imminent eruption scattered Throughout this valley,
S01 • E01 If it was built originally to a certain thickness, - Secrets of the Underground 00:07
If it was built originally to a certain thickness,
S01 • E08 Compiling the data gathered across the rec yard, - Secrets of the Underground 00:09
Compiling the data gathered across the rec yard,
S01 • E02 I'm wondering if it could connect the Capitol to more secret tunnels - Secrets of the Underground 00:10
I'm wondering if it could connect the Capitol to more s...
S01 • E03 But no, this just broke the skull, - Secrets of the Underground 00:07
But no, this just broke the skull,
S01 • E01 It's got multiple layers - Secrets of the Underground 00:05
It's got multiple layers
S01 • E07 Explosive volcanic eruption In north america. - Secrets of the Underground 00:04
Explosive volcanic eruption In north america.
S01 • E07 That mammoth blast 760,000 years ago. - Secrets of the Underground 00:05
That mammoth blast 760,000 years ago.
S01 • E01 So you can't tell if there's a staircase, - Secrets of the Underground 00:06
So you can't tell if there's a staircase,
S01 • E08 It appears as if the hollow pockets running through the rec yard - Secrets of the Underground 00:14
It appears as if the hollow pockets running through the rec ...
S01 • E07 Was so powerful, - Secrets of the Underground 00:10
Was so powerful,