Avant garde house of Pierre Cardin on the Cote d’Azur.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

This bookstore serves recipes from the cookbooks on sale.

A giant interactive periodic table with real samples of the elements.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A mocking tribute to the past and modern leadership of Prague.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

A Jenga-style cylindrical tower of books that appears to go on forever.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This spooky statue sits outside a famous Prague theater.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

A set of seven houses, each built in a style that represents a European country.

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

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

A museum honoring Germany’s cucumber mecca offers a great dill of gherkin history.