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

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

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

Berlin's old airport.

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

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

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

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

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

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."

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

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

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

Started as a kitchen garden, now the second largest botanical garden in the world.

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

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

Explore the complex ecology of this multifaceted nature preserve by riverboat.

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”