The "Prussian Versailles" that is as glorious today as when it was built.

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

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

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

Berlin's old airport.

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

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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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

Tiny memorials honor individual victims of the Holocaust.

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

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