Secrets of Great British Castles

Still a functioning military garrison, Edinburgh Castle has been the scene of royal births, notorious murders and nearly two dozen sieges.

Dan visits Cardiff Castle and explores its motley history as ancient military fortress, Victorian fantasy home and World War II air raid shelter.

Delving into the lore of York Castle, Dan uncovers the fortress's ties to Vikings, the Knights Templar, a legendary highwayman and a vicious pogrom.

One of Britain's oldest citadels, Lancaster Castle remains infamous for its long record of religious persecution, witch trials and grim executions.

Dan learns methods of medieval cooking at Leeds Castle in Kent, a centuries-old stately home for monarchs and now an elegant and exclusive retreat.

Visiting the traditional seat of the Dukes of Norfolk, Dan learns about Arundel Castle's renowned art collection and Queen Victoria's visit in 1846.