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So, if this is man-made, who would have made it and why?
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Secrets of the Underground

So, if this is man-made,who would have made it and why?

So, if this is man-made,
who would have made it and why?

Full Transcript

00:00:01.000 --> 00:00:05.028
So, if this is man-made, who would have made it and why?
Duration
5 seconds
Views
19
Timestamp in Movie
00:26:50
Uploaded
Jul 11, 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 • E01 Or do they? Is it just that my brain wants to see a pattern, - Secrets of the Underground 00:07
Or do they? Is it just that my brain wants to see a pattern,
S01 • E02 But the real focal point of broader suspicions - Secrets of the Underground 00:10
But the real focal point of broader suspicions
S01 • E03 The first step to solving this mystery - Secrets of the Underground 00:10
The first step to solving this mystery
S01 • E07 Are found on the west coast Of ireland, - Secrets of the Underground 00:08
Are found on the west coast Of ireland,
S01 • E01 It's a psychological phenomenon, pareidolia. - Secrets of the Underground 00:05
It's a psychological phenomenon, pareidolia.
S01 • E08 Once we're out in open water, - Secrets of the Underground 00:07
Once we're out in open water,
S01 • E02 An area believed to be big enough to house 32 city blocks - Secrets of the Underground 00:07
An area believed to be big enough to house 32 city blocks
S01 • E01 Our brains are wired to detect human faces from birth, - Secrets of the Underground 00:08
Our brains are wired to detect human faces from birth,
S01 • E07 If vance's theory is true, - Secrets of the Underground 00:05
If vance's theory is true,
S01 • E08 So I join underwater archaeologist Mark Holley on the top deck - Secrets of the Underground 00:08
So I join underwater archaeologist Mark Holley on the top de...
S01 • E02 Is all that space really just for baggage handlers? - Secrets of the Underground 00:04
Is all that space really just for baggage handlers?
S01 • E03 Once the ROV settles, - Secrets of the Underground 00:06
Once the ROV settles,
S01 • E01 Because of that, we sometimes see faces or distinct shapes - Secrets of the Underground 00:13
Because of that, we sometimes see faces or distinct shapes
S01 • E02 But if it is part of some large classified site, - Secrets of the Underground 00:08
But if it is part of some large classified site,
S01 • E03 But if Paki stirs up silt with the thrusters and there is a leak, - Secrets of the Underground 00:09
But if Paki stirs up silt with the thrusters and there is a ...
S01 • E07 Likely reached these shores long Before the spaniard set sail. - Secrets of the Underground 00:05
Likely reached these shores long Before the spaniard set sai...
S01 • E08 We were looking for a shipwreck, - Secrets of the Underground 00:05
We were looking for a shipwreck,
S01 • E07 One author believes that A celebrated chinese mariner. - Secrets of the Underground 00:04
One author believes that A celebrated chinese mariner.
S01 • E08 We had no idea what it was, - Secrets of the Underground 00:06
We had no idea what it was,
S01 • E02 Now my quest to unlock America's underground secrets - Secrets of the Underground 00:12
Now my quest to unlock America's underground secrets