Terrifying derelict military hospital once housed a recuperating Hitler.

A quaint Russian village in the middle of a German metropolis.

This TV tower once secretly housed a GDR intelligence team.

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

A helicopter memorial commemorating what was once the only way to access this West Berlin exclave.

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

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.

An eerie, derelict amusement park in Berlin.

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

This monumental work of art symbolizes the coming together of a previously divided city.

Floating swimming pool within a moored vessel.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A brush maker used his factory to protect blind Jews from the Gestapo.

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.

This classic restaurant features a gorgeous mirror-clad room.

A slice of central Asia in the middle of Berlin.

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

Concerts, art, offices, and a café in what used to be Berlin's first crematorium.

An old department store turned Nazi prison turned artist commune.