Mysteries of the Abandoned

Amazon Ghost Town (2x7)

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An American ghost town in the Amazon jungle, a secret Nazi base, and a deadly concrete fortress 866 miles long are mysterious deserted engineering projects. Stories: 1) Fordlandia, Para, Brazil; 2) Inner German Border, Hotensleben, Germany; 3) Mauerwald, Mamerki, Poland; 4) Pente D'eau, Montech, France