Mysteries of the Abandoned

Nazi Ghost Town (1x1)

Air date: Apr 20, 2017

Revisiting deserted engineering projects to find out how they were built and why they were mysteriously abandoned. Stories: 1) Goat Canyon Trestle Bridge, California, USA; 2) Duga Woodpecker, Duga, Ukraine; 3) Prora, Germany; 4) Grand Goulets Road, France