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

A restaurant and observation deck built in a unique broadcasting antenna.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

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

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

A unique military outpost carved into a rocky outcrop in the English Channel.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

A French museum of wrought iron.

Executions were once held near this beautiful 18th-century fountain.

A melancholy jester sits on the grave of a famous 20th-century ballet dancer and choreographer.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

The French leader's hat sits in a glass case at the oldest restaurant in Paris.

This abandoned church in central Lyon is missing its front stairs.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

An image of the legendary saint stands in the shadow of a cathedral she liberated.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This emotive sculpture was originally created for the 1878 World's Fair.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.