S01E01
2019-10-17
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Underground Marvels
Overview
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.
Episodes
Seasons 1
S01E02
2019-10-24
Mystery of the Lost Labyrinth
S01E03
2019-10-31
Secrets of the Terror Tunnels
S01E04
2019-11-07
The Renegade's Lair
S01E05
2019-11-14
Cave of the Body Snatchers
S01E06
2019-11-21
World's Biggest Labyrinth
S01E07
2019-12-05
Treasures of the Lost Mine
S01E08
2019-12-12
Ghosts of the Hell Maze
S01E09
2019-12-19
Conspiracy in the Buried City
S01E10
2019-12-26
Curse of Cannibal Caves
Cast
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