A fantastic castle rumored to be the birthplace of King Arthur.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

An old department store turned Nazi prison turned artist commune.

Metro station with a claim to rock n' roll fame.

Berlin's old airport.

Where once there was a train station bathroom, there is now this German burger joint.

Blitzkrieg bop your way through Berlin's Ramones Museum.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A spiral staircase twists to the top of this unusual Czech lookout tower.