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

A monument to the man who almost killed Hitler.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

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.

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

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

Berlin's old airport.

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

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

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

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

Super-heavy Nazi architectural experiment.

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

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

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

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

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Art and a pun, all in one.

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

This classic restaurant features a gorgeous mirror-clad room.