When did Underground Worlds Season 2 Episode 4 air?
Underground Worlds Season 2 Episode 4 aired on January 31, 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 4
Hotel Bunker of the Apocalypse
Jan 31, 2022·45m
Exploring the secret, Cold War US government bunker hidden under Greenbrier Hotel, West Virginia; Plus, delve into the depths of a former slate mine in Wales, UK.
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Direct answers for episode-level questions and details.
How long is Underground Worlds Season 2 Episode 4?
This episode runs for approximately 45 minutes.
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