The zoological collection at the Hessisches Landesmuseum hosts some of the world's oldest habitat dioramas.

A German apartment building hosting as many trees as human occupants.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Model Trains and Much More in Hamburg.

Berlin's old airport.

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

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This London plaque marks the spot where David Bowie's famous alien made his debut.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

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

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

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Metro station with a claim to rock n' roll fame.