Secret City of WWI

Smithsonian Channel

Sunday 26 April 2020  23:30 - 00:30 (60 mins)
The discovery of an underground city in Northern France, where World War I soldiers took refuge. A historian and photographer attempts to connect the names to their descendants.

Secret City of WWI (Smithsonian Channel) Sunday 26 April 2020 23:30 - 00:30