A German apartment building hosting as many trees as human occupants.

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

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The great Danube river starts here.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

No need to strap in for a "ride" on this walkable roller coaster.

Super-heavy Nazi architectural experiment.

Berlin's old airport.

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

The prototype for all Nazi concentration camps.

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

This historic stone bridge has an entire neighborhood clinging to its sides.

Living trees form the structure of an open-air palace.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A stairway to heaven, or to nowhere at all.

An intricate and amazing house built by architect Karl Junker.

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

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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