This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

The oldest inn in England served brew to the crusaders.

The "Prussian Versailles" that is as glorious today as when it was built.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

A 12th-century fortress containing some of Berlin's oldest buildings.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

A restaurant and observation deck built in a unique broadcasting antenna.

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

An old department store turned Nazi prison turned artist commune.

Cold war icon and onetime "hole" in the iron curtain.

Go surfing on this urban wave, "hacked" by local surfers.

A stairway to heaven, or to nowhere at all.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.