Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

A monument to the man who almost killed Hitler.

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

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

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.

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.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

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.

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.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

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

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

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

Art and a pun, all in one.

A surreal museum of extraordinary industrial objects.

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

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.