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History's Secrets
• 0h 45m • 4 Seasons • 27 Episodes • ★ 7.5 (4 votes) Ended
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.
Rating
7.5
Runtime
45 min
Episodes
27
Production
National GeographicKeywords
investigation
