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Mysteries of the Abandoned - Season 1, Episode 05: Soviet Doomsday Device
In this documentary series, we explore some of the most sophisticated facilities and facilities in the world. Over time, these facilities have been left entirely after they have stood at the forefront of design and construction. Today, there are many uninhabited cities and empty factories that have been left behind. The series explains why some of the most advanced and historic architectural achievements have been left behind.