Troy is the legendary lost city at the center of the Trojan War, but its existence has never been confirmed; new discoveries and cutting-edge science might prove if this place existed and if the Greeks really conquered it with the infamous Trojan Horse.

Mount Rushmore in the Black Hills of South Dakota is one of America's most iconic landmarks, but there are dark mysteries behind its presidential faces. Experts use cutting-edge tech and the latest science to reveal what lies beneath the rock and the secret history of its creation. The Crazy Horse Memorial in the Black Hills is also featured.