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

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

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

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

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

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

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

Blitzkrieg bop your way through Berlin's Ramones Museum.