A mysterious American pyramid built out of Cold War paranoia, a haunted prison, and a cluster of structures in the Atlantic are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.
Cast Appearances
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Retitled, this episode re-aired as "Aliens in the Atlantic" on 3/1/2019 at 2100 with a summary of "New discoveries reveal why the world's most ambitious engineering projects were abandoned, unraveling the dark mysteries and bloody secrets of these strange ruins."
Retitled, this episode re-aired as "America's Great Pyramid" on 2/8/2019 at 2000 with a summary of "New discoveries reveal why the world's most ambitious engineering projects were abandoned, unraveling the dark mysteries and bloody secrets of these strange ruins."