The Greatest Undercover Operations in History

Alexander the Great conquered one of the largest empires in history, only to die suddenly at the age of 32. Explore the enduring mystery surrounding his final days and the theories that continue to divide historians.

Dolph Lundgren explores the groundbreaking rockets that transformed warfare, space exploration and aviation.

Discover how this groundbreaking weapon reshaped battlefield tactics and became one of the war's most influential military innovations.

As the Confederacy fell, its rumored fortune in gold and silver disappeared. Explore the Civil War mystery of the missing treasure that may still be waiting to be found.