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

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

This diner's a kitschy dreamland for anyone whose heart is stuck in the 1980s.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

A 100-plus-year-old mill transformed into a hotel and restaurant.

Got apples?

The personal library of the founder of modern neurology is open to visitors.

The video game-themed street art first popped up in the French city.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

The first green space constructed on an elevated viaduct.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

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

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

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

A haunting collection of the vanished and disappearing natural world.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.