A museum of magic with a Sadist past.

The oldest stone house in Paris was built by its most famous alchemist.

This little-known relic crypt holds stolen parts of a Roman Empress.

A mechanized clock where a man fights off a dragon, crab, and rooster.

Notorious artist squat renovated into legal studios.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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.

A surrealist timepiece by the artist of melting clocks.

This century-old ruined temple was reborn as "The Church of Skate."

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

One of Europe's oldest yew trees has lived more than 2,000 years.

A cluster of granite granaries perched on stilts.

A mountain path passes by several sprawling enclosures home to a pair of rescued brown bears.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

This house covered in small stones was the work of one man over the course of nearly 30 years.

The ruins of the second-largest circus school in the world.

An abandoned 6th-century monastery features a medieval map of the known world.

A 12th century church completely covered in shells.

This rough experimental house was created by flooding a dirt hill with concrete.

Open air sculptures by an eccentric and loin-clothed hermit.