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Underground Worlds - Season 1 Episode 3 Switzerland

Trailer
A look at some of Switzerland's 300,000 subterranean bunkers, the creation of a local entrepreneur shrouded in mystery in England and a network of tunnels deep beneath Slovenia.

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First Air Date: Sep 25, 2019

Last Air date: Mar 14, 2022

Season: 2 Season

Episode: 20 Episode

Runtime: 45 minutes

IMDb: 8.00/10 by 1.00 users

Popularity: 2.337

Language: English

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