Tue, Jun 5, 2018
Finished in 1928, the Canfranc Railway Station was used during WWII under an agreement between the Spanish and the Nazis to transport tungsten. Also investigated, the Kola Superdeep borehole, the Salton Sea Navy Base in California and a derelict tower looming over an industrial area in Belgium.
Tue, May 8, 2018
The Pölitz Synthetic Fuel Plant built in 1937 by Germany to turn coal into oil, was destroyed in 1945 by an Allied air raid. The Rubjerg Knude Lighthouse was built on Lonstrup Cliff in Denmark and ceased operating on 1 August 1968. Also investigated are Teufelsberg (or "Devil's Mountain") in Berlin and Phoenix Shot Tower in Baltimore.