A Secret Knights Templar Treasure Tunnel

After a devastating attack, a single moment of violence sparks the rise of a powerful and legendary group of holy warriors.

Where could the mysterious Holy Grail have ended up?  The legend of King Arthur and his Knights of the Round Table may provide some clues.

See how the elaborate battle armor worn by medieval knights developed and evolved.

During the Middle Ages, the Templars were famous across Europe, but their fall in 1307 shocked the world. Historian Dan Jones examines how the real history of the Templars is even more astonishing than the fiction that still swirls around them.