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Secrets of the Underground

We know there'sSurveyors marks out there, So there's some reallyLegitimate carving

We know there's
Surveyors marks out there, So there's some really
Legitimate carving

Full Transcript

00:00:01.000 --> 00:00:02.008
We know there's Surveyors marks out there,
00:00:02.081 --> 00:00:04.469
So there's some really Legitimate carving.
Duration
4 seconds
Views
12
Timestamp in Movie
00:39:05
Uploaded
Jul 09, 2025
Season
1
Episode
7
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 • E02 Brad has uncovered numerous artefacts at historical sites around the area. - Secrets of the Underground 00:06
Brad has uncovered numerous artefacts at historical sites ar...
S01 • E01 Smaller rice kernels filter down into the spaces created by jostling, - Secrets of the Underground 00:07
Smaller rice kernels filter down into the spaces created by ...
S01 • E07 Now that we have rti, - Secrets of the Underground 00:06
Now that we have rti,
S01 • E02 I'm hoping some of these priceless antiquities - Secrets of the Underground 00:07
I'm hoping some of these priceless antiquities
S01 • E08 Unbelievable! A mastodon carving on a rock - Secrets of the Underground 00:08
Unbelievable! A mastodon carving on a rock
S01 • E07 And try to look back In the literature, - Secrets of the Underground 00:05
And try to look back In the literature,
S01 • E03 My job in this experiment is to create a mini-earthquake. - Secrets of the Underground 00:05
My job in this experiment is to create a mini-earthquake.
S01 • E01 So with all the earthquakes - Secrets of the Underground 00:10
So with all the earthquakes
S01 • E03 Rob is hitting a steel plate with the sledgehammer - Secrets of the Underground 00:07
Rob is hitting a steel plate with the sledgehammer
S01 • E08 Mastodons are an ancient ancestor of elephants and woolly mammoths. - Secrets of the Underground 00:05
Mastodons are an ancient ancestor of elephants and woolly ma...
S01 • E02 And I've got a couple of objects back here - Secrets of the Underground 00:09
And I've got a couple of objects back here
S01 • E07 That could have Ancient irish origins, - Secrets of the Underground 00:06
That could have Ancient irish origins,
S01 • E01 It looks like exactly the opposite has happened. - Secrets of the Underground 00:05
It looks like exactly the opposite has happened.
S01 • E08 They were one of the largest land animals ever to roam North America, - Secrets of the Underground 00:09
They were one of the largest land animals ever to roam North...
S01 • E07 Still, it's possible Any articles left by the irish. - Secrets of the Underground 00:04
Still, it's possible Any articles left by the irish.
S01 • E01 The question is, why? What secret is the soil revealing? - Secrets of the Underground 00:05
The question is, why? What secret is the soil revealing?
S01 • E07 Were carried off By later visitors, - Secrets of the Underground 00:06
Were carried off By later visitors,
S01 • E02 In Brad's collection is a relic - Secrets of the Underground 00:11
In Brad's collection is a relic
S01 • E08 Mastodon fossils have been uncovered all across the eastern US, - Secrets of the Underground 00:10
Mastodon fossils have been uncovered all across the eastern ...
S01 • E01 What do you think this could be? - Secrets of the Underground 00:04
What do you think this could be?