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Featured are an entrance to the underworld in the American wild, a haunting Soviet underwater prison, and a strange complex of towers in a forest of ice. These deserted engineering projects are explored, and new discoveries reveal how they were built and w (more…)
A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, and a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.
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