Synopsis
Mysterious events, compelling figures and great unanswered questions from the past are explored, with a focus on the reclusive billionaire Howard Hughes; the CIA's top-secret experiments; the Unabomber and; little known stories from NASA's Apollo missions. Where to watch History's Secrets series? Click the "Watch Now" button above to stream all seasons and episodes of History's Secrets in HD for free on SFlix.
Seasons (4)
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