History's Secrets
Season 4
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.
Storyline
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.
Last Aired
January 25, 2011
Runtime
45min
Seasons
4
Episodes
27
Genre
Status
Ended
Language
English
Production
National Geographic