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

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

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

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

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.

Super-heavy Nazi architectural experiment.

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

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

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

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

This watchtower once presided over the Berlin Wall.

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

Reminders of the Battle of Berlin still scar the railway.

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

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

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

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.

The final resting place of many of Germany's most famous communists.