The UnXplained
Season 7 Episode 18 - Mysteries of the Underground
6.7 ?
2019
Documentary
Beneath our feet lie hidden ancient tunnels, sacred caves, and shadowy passages into a world of darkness shaped by nature, carved by man, and steeped in myth. Are these underground realms mere remnants of the past?
Episodes in Season 7
1
The Golden Age of Pirates
42 min
2
Impossible Ancient Inventions
42 min
3
The Lost
42 min
4
Alien Contagion
42 min
5
Ancient Bible Relics
42 min
6
Islands of the Damned
42 min
7
Tales From Antarctica
42 min
8
Robot Revolution
42 min
9
Secret Societies
42 min
10
Secrets of the Spies
42 min
11
Secrets of the Civil War
42 min
12
Mysterious Urban Legends
42 min
13
Mad Scientists
42 min
14
Strange Tales from the American Frontier
42 min
15
Terrors of the Deep
42 min
16
Unlocking the Sixth Sense
42 min
17
The World's Deadliest Assassins
42 min
18
Mysteries of the Underground
42 min
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