This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

Notorious artist squat renovated into legal studios.

This massive library holds what was once the largest book collection in the world.

This enchanting mountain plateau celebrates spooky local folklore.

A strange rock formation with numerous legends trying to explain it.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.