Berlin's beloved bear is immortalized at the Museum für Naturkunde.

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

A monument to the man who almost killed Hitler.

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

A century-old shot ball factory tower is open to the public once a year.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

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

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

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

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

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

Berlin's old airport.

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

Blitzkrieg bop your way through Berlin's Ramones Museum.

Floating swimming pool within a moored vessel.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

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

A museum dedicated to a Cold War era sausage.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Art and a pun, all in one.

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

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

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