Meriwether Lewis was the man who teamed with William Clark to map the lands west of the Mississippi, but he died in mysterious circumstances; experts reveal a vast conspiracy that could prove that one of America's greatest explorers was murdered.

New discoveries at the site of an alleged long-lost gold mine could lead investigators to a 200-million-dollar payday, and using cutting-edge tech, experts investigate clues in long-lost maps and relics to recover the Lost Dutchman's treasure.

New evidence suggests the Maya civilization did not suddenly vanish, but instead, that they survived and resettled in the United States; experts use cutting-edge tech to reveal what really happened to these long-lost people.

New evidence from one of the world's oldest maps offers clues to a long-lost civilization of untold treasure, and this cutting-edge expedition might finally prove that this mysterious kingdom is the ancestral home of the ancient Egyptians.

The legend of the Fountain of Youth might finally be explained by hidden messages encoded in a 500-year-old map, and using cutting-edge archaeological methods, experts explore forgotten caves and perilous waters to reveal this mystery's long-lost secrets.

New evidence suggests the Knights Templar fled Europe and rebuilt their warrior order in the Americas a century before Christopher Columbus; experts use technology to investigate long-lost relics to see if they confirm this game-changing theory.

A long-lost treasure map claims to know the whereabouts of missing ship buried with gold and silver in the California desert, and using cutting-edge tech, a team of experts use this new evidence to get closer to a game-changing discovery.

New clues taken from long-lost maps offer fresh leads in the hunt for the Ark of the Covenant, and using the latest hi-tech archaeological methods, experts retrace its steps through the Holy Land, Egypt, and Ethiopia to make a game-changing discovery.