When did Underground Worlds Season 2 Episode 5 air?
Underground Worlds Season 2 Episode 5 aired on February 7, 2022.
Underground Worlds
British documentary series exploring incredible feats of human endeavour underground, revealing what people have built, where they have built it, how and why.
Season 2 · Episode 5
Mystery of the Kentucky Cave
Feb 7, 2022·45m
Exploring the vast 400-mile Mammoth Cave in Kentucky, USA. Plus, a newly constructed opening into a metal mine in Wales - untouched for over 70 years.
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Direct answers for episode-level questions and details.
How long is Underground Worlds Season 2 Episode 5?
This episode runs for approximately 45 minutes.
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