Switzerland
Underground Worlds

Switzerland


Season 1 / Episode 3

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 man-made tunnels deep beneath Slovenia.


Genre - Documentary
Running Time - 1h
Country - GBR
Language - en-GB
Original Air Date - Monday 22nd July 2019

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