Mysteries of the Abandoned

America's Doomsday Town (3x5)

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A strange deserted city in America's heartland, an eerie gigantic wall deep in snow-capped mountains, and a mysterious top-secret Soviet facility are deserted engineering projects. Stories: 1) Gleno Dam, Valle di Scalve, Italy; 2) Packard Automotive Plant, Detroit, USA; 3) Hara Submarine Bade, Hara, Estonia; 4) Masurian Canal-Lock Gorne, Leśniewo, Poland