She was the last pharaoh of Egypt and one of the most famous queens of all time, but her death has been shrouded in mystery. Cleopatra's tomb have been lost for over 2,000 years. Can new evidence uncover Cleopatra's missing tomb?

In July 1996, one of the worst aviation disasters in American history leaves 230 people dead and countless questions unanswered. It's a tragedy that changes the aviation industry forever, but what caused the explosion of TWA Flight 800?

The history books say Adolf Hitler committed suicide in the final days of World War II. Did the Nazi leader really die in Berlin, or was he able to escape?

During World War II, Japan plunders a fortune worth hundreds of billions of dollars from occupied countries, but to this day its whereabouts are unknown.

In a perfectly planned robbery, thieves steal half a billion dollars in masterpieces from the Gardner Museum in Boston. It's been three-decades since the brazen heist... Who orchestrated history's biggest art heist - and why?