BLAZE

A look at whether time travel has already occurred, on purpose or by accident, and scientists who believe it is theoretically possible.

Age-old mysterious ruins stand as silent sentinels from the past, with their true history seemingly erased by time. Modern archaeology attempts to unravel the enigma of how and why the ancient structures were built.

During the Middle Ages, the Vikings were infamous for being a bloodthirsty band of seafaring warriors. Historians are learning surprising new things about this Norse society.

Piers Morgan interviews Levi King to determine if it was nature or nurture that led to a 24-hour killing spree that cost the lives of five innocent people.

Two treasure hunters have a wooden chest full of relics from the medieval Christian pilgrimages, including pendants from the Camino De Santiago in Spain.

Hamilton has amassed an extraordinary collection of Nazi memorabilia. These include a collection of Nazi badges that were sold to raise money for the German poor, and an ammunition box full of silver bullion bars.

Ian and Butzy are searching for treasure in Cork, Ireland's largest county. They go picking at an 11th Century castle built by the grandson of Brian Boru, high king of Ireland. Undeterred by its turbulent past and tales of ghosts, Ian discovers a mysterious stone head, a carving...