Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

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

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

Take a walk in a recreation of ancient Rome.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

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

The last bastion of Roman presence north of the Alps looms over a German town.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The prototype for all Nazi concentration camps.

A fascinating insight into daily life in the Eastern Bloc.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

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

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

The Guardian of Tallinn.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.