Since ancient times, man has gone to extreme and often deadly lengths to get gold, one of the rarest treasures on Earth; looking at where the gold is today and who owns it.
A secret society gathers in the dead of night and plots the assassination of President Abraham Lincoln; U.S. spymaster Allan Pinkerton stops Confederate agents before they can topple the Union.
An examination of underground bunkers, from their use in ancient wartime planning to the hidden survival complexes found beneath modern American cities.
Investigating UFOs and the strange stories surrounding them, including the existence of a "shadow government" and the rumor of a Nazi flying saucer that crashed in New Mexico.
Secrets involving the federal penitentiary on Alcatraz Island, including the escape of three prisoners and the remnants of a strange military outpost with ties to President Abraham Lincoln.
Secrets of gambling mecca Las Vegas include the city's connection to organized crime, crafty tricks used by casinos and why the Nazis considered it a target for sabotage.