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It probably leads to a greater underground cave network
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Secrets of the Underground

It probably leads to a greaterunderground cave network, maybe a tunnel system

It probably leads to a greater
underground cave network, maybe a tunnel system

Full Transcript

00:00:01.000 --> 00:00:03.096
It probably leads to a greater underground cave network,
00:00:04.004 --> 00:00:05.064
maybe a tunnel system.
Duration
6 seconds
Views
13
Timestamp in Movie
00:05:42
Uploaded
Jul 09, 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 • E08 Leading many, like Jim Quillen, - Secrets of the Underground 00:06
Leading many, like Jim Quillen,
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 • 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
S01 • E01 And then there's a second tunnel on this side. - Secrets of the Underground 00:04
And then there's a second tunnel on this side.
S01 • E03 We've got examples of Irish pipes. Wow, look at that. These are fantastic. - Secrets of the Underground 00:06
We've got examples of Irish pipes. Wow, look at that. T...
S01 • E07 In 2016 at Yellowstone national park, - Secrets of the Underground 00:08
In 2016 at Yellowstone national park,
S01 • E02 Some suspect the airport tunnels lead to a secret bunker complex - Secrets of the Underground 00:08
Some suspect the airport tunnels lead to a secret bunker com...
S01 • E08 And he shimmied himself down along that - Secrets of the Underground 00:12
And he shimmied himself down along that
S01 • E01 This is awesome. Looks like a great place to escape, as a gangster. - Secrets of the Underground 00:05
This is awesome. Looks like a great place to escape, as a ga...
S01 • E03 This is clay and it says "Flag of Ireland". - Secrets of the Underground 00:04
This is clay and it says "Flag of Ireland".