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Underground Marvels

2019

Mystery of the Kentucky Cave 2 Season 2 Episode

6.5

The longest known cave system in the world spans hundreds of miles beneath the hills of Kentucky, and containing prehistoric artifacts and ancient human remains, experts reveal a subterranean mystery that may have changed the course of U.S. history.

Country
United Kingdom
Genre
Documentary
Released
17 Oct, 2019
Cast
Chris Jarman
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