The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

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

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

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

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

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

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

An eerie, derelict amusement park in Berlin.

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

Super-heavy Nazi architectural experiment.

A surreal museum of extraordinary industrial objects.

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

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

Art and a pun, all in one.

This classic restaurant features a gorgeous mirror-clad room.

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

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

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

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

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.