Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

A plaque on the side of a building is a small tribute to the woman who invented an iconic Berlin fast food.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

Taste freshly foraged yarrow and black locust blossoms at this ambitious cocktail bar.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Floating swimming pool within a moored vessel.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

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

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

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

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

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

A wunderkammer of mysterious objects and stories.

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

A surreal museum of extraordinary industrial objects.

A slice of central Asia in the middle of Berlin.

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

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

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