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The three made a stunning discovery here a few years back
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Secrets of the Underground

The three made a stunningdiscovery here a few years back using ground penetrating radar,or...

The three made a stunning
discovery here a few years back using ground penetrating radar,
or GPR

Full Transcript

00:00:01.000 --> 00:00:04.076
The three made a stunning discovery here a few years back
00:00:04.084 --> 00:00:08.088
using ground penetrating radar, or GPR.
Duration
9 seconds
Views
18
Timestamp in Movie
00:05:25
Uploaded
Jul 13, 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 Shortly after this cellblock was built, - Secrets of the Underground 00:12
Shortly after this cellblock was built,
S01 • E02 There's a plaque that references the New World Airport Commission, - Secrets of the Underground 00:09
There's a plaque that references the New World Airport ...
S01 • E03 While mapping the area's subterranean structure, - Secrets of the Underground 00:05
While mapping the area's subterranean structure,
S01 • E01 We can see utility pipes that go much, much further, - Secrets of the Underground 00:08
We can see utility pipes that go much, much further,
S01 • E03 We found an anomaly right here, - Secrets of the Underground 00:07
We found an anomaly right here,
S01 • E02 But some suspect that it actually refers - Secrets of the Underground 00:07
But some suspect that it actually refers
S01 • E01 It probably leads to a greater underground cave network, - Secrets of the Underground 00:06
It probably leads to a greater underground cave network,
S01 • E03 That anomaly turned out to be the remains of eight labourers, - Secrets of the Underground 00:07
That anomaly turned out to be the remains of eight labourers...
S01 • E08 Leading many, like Jim Quillen, - Secrets of the Underground 00:06
Leading many, like Jim Quillen,
S01 • E07 Holy smokes. Look at this hot spring. - Secrets of the Underground 00:04
Holy smokes. Look at this hot spring.
S01 • E01 Could it lead to how Al Capone was able to smuggle booze - Secrets of the Underground 00:08
Could it lead to how Al Capone was able to smuggle booze
S01 • E02 A phrase made famous by HG Wells's 1940 book of the same name, - Secrets of the Underground 00:13
A phrase made famous by HG Wells's 1940 book of the sam...
S01 • E08 He got here in the very early 1940s. - Secrets of the Underground 00:04
He got here in the very early 1940s.
S01 • E03 We found six bodies and another coffin - Secrets of the Underground 00:06
We found six bodies and another coffin
S01 • E07 I only got my hand About this far from it, - Secrets of the Underground 00:07
I only got my hand About this far from it,
S01 • E01 And there's also a tunnel on the other side too. - Secrets of the Underground 00:05
And there's also a tunnel on the other side too.
S01 • E08 And he was working in the kitchen and discovered that... - Secrets of the Underground 00:05
And he was working in the kitchen and discovered that...
S01 • E02 This term has since been linked to rumours - Secrets of the Underground 00:10
This term has since been linked to rumours
S01 • E08 When he lifted this big steel hatch on the floor of the kitchen, - Secrets of the Underground 00:11
When he lifted this big steel hatch on the floor of the kitc...
S01 • E03 Their excavations have also turned up artefacts - Secrets of the Underground 00:06
Their excavations have also turned up artefacts