History's Secrets
7.3/10
45 Minutes
Country:US
Seasons:4
Networks:N/A
- 2011-01-25
Documentary
Spoken Languages: English
Overview:
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.
Seasons
4
Episode Runtime
45 Minutes
First Air Date
Rating
7.3
Production companies
National Geographic
Genre
Documentary