History's Greatest Mysteries

In 1996, one of the worst disasters in American history left 230 people dead and questions unanswered in a tragedy that changed the aviation industry forever. (S4, ep 21)

The history books say Adolf Hitler committed suicide in the final days of World War II, but did the Nazi leader die in Berlin or was he able to escape? (S4, ep 22)

Explore the top theories behind what happened to the treasure looted by the Japanese during World War II. (S4, ep 23)

The gruesome murder of a young beauty goes unsolved for decades. There's a long list of suspects, each more mysterious than the last. (S4, ep 24)

In 1990, thieves stole half a billion dollars in masterpieces from the Isabella Stewart Gardner Museum. Who orchestrated the infamous heist and why? (S4, ep 25)