A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Southern Italy's spinning top village.

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

Every inch of this chapel is covered in craftsmanship from across the world.

Italian cave with exceptional acoustics and an unsavory history.

A little sculpture with a large wardrobe.

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

The most visited, and possibly most controversial, museum in Germany.

Monsters and miniatures are held in equal esteem at this wondrous museum.

The celebrated eyesore created by starry-eyed sweethearts.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

A sulfuric hellscape in southern Italy.

Pompeii's less famous neighbor is still revealing her secrets.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Beneath the city of Lourdes, France is a massive, concrete church.

Venice's island of the dead.

Pilgrimage site for star-crossed lovers.

Venice's "Island of the Mad."