A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

Started as a kitchen garden, now the second largest botanical garden in the world.

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

The world's first motorway was used as a racetrack until the late 1990s.

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

You've probably seen these distinctive orange-tiled columns on the big screen.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

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

This watchtower once presided over the Berlin Wall.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

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

Tiny memorials honor individual victims of the Holocaust.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

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

The most visited, and possibly most controversial, museum in Germany.

One of downtown Berlin's last reminders of its Communist past.

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

When German-Iraqi relations broke down, this embassy was vacated post haste.