Investigators piece together the true story of Mount Rushmore.

The Tower of Babel is one of the most famous stories of the Bible. To find out if it really existed, archaeologists use cutting-edge tech and the latest science to investigate how ancient engineers could have built such an extraordinary structure.

Investigators uncover the true story of Hitler's underground bunker.

Investigators try to figure out why the Tower of Pisa tilts.

The gunfight at Tombstone's OK Corral turned Wyatt Earp into an American folk hero. To find what really happened here, experts use the newest tech to discover what caused the fatal shootout and what it reveals about the dark secrets of the Wild West.

The Seven Wonders are the engineering marvels built by great minds of long-lost civilizations, but we're not sure if some even existed. New discoveries & cutting-edge archaeological methods might prove what they looked like and why they disappeared.

A strange site called Saqqara is home to Egypt's very first pyramid. Here, experts use cutting-edge tech to reveal why the ancient Egyptians started building pyramids and if the mummified animals found here are evidence of a bizarre religious cult.

Discover Alcatraz's most hidden and dangerous secrets.

The Roman Empire built Hadrian's Wall to guard its frontiers at the edge of the world. New discoveries reveal who the Romans were trying to keep out with this 72-mile-long structure and what it tells us about the ancient people of Iron Age Britain.

Pyramids in the deserts of Sudan are the ruins of a powerful lost civilization that rivaled the pharaohs of ancient Egypt. Using cutting-edge tech and archaeological methods, experts are revealing the secrets behind the mysterious Kingdom of Kush.

Experts discover what Babylon looked like and what caused its downfall.

Cutting-edge tech helps experts investigate the Bermuda Triangle.

Experts investigate the science behind why the Twin Towers collapsed.

Investigators look at the mysteries behind the modern wonders of America.