Next Episode of Underground Worlds is
For centuries, people have built mind-blowing structures underground. This series reveals incredible feats of human endeavour and reveals what people have built, how they built it and why.
The underground bases built by the German army during the occupation of Jersey, and a group of more than 20 underground cities in Turkey, one of which dates back to 800BC.
The secrets of the largest subterranean fortress along France's border with Germany, and a look at how a unique precious mineral was discovered in Derbyshire.
This episode explores the now hidden arches and vaults of South Bridge in Edinburgh, Scotland and reveal why this underground world has such a sinister past and how today it has been reimagined. Beneath Naples in Italy, under the city, viewers see how the excavation of the volcanic ‘tuff' to build above ground has left an extraordinary imprint underground. And finally, in Finland's capital Helsinki they've been developing an underground master plan for the entire city by reusing older subterranean spaces and creating new facilities for the population.
Take a look at the Dover War Rooms, Maastricht Underground and Odessa Catacombs all hidden underground.
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