This Parisian café sticks almost exclusively to an ethos of reuse.

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

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

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A Belle Epoque bordello turned into a themed love hotel.

France's national museum of scientific and industrial instruments.

A curious collection of locks and keys.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

A museum of carnival attractions where you are invited to ride the rides.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Abandoned railway line circling the city of Paris.

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

Huge Russian Orthodox cemetery in danger of being converted into open public space.

One of the greatest maze designer’s greatest mazes.

A snowy highland notorious for unexplained aircraft crashes is France's own Bermuda Triangle.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

The famous winding walk at Chartres is surrounded in mystery and myth.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

Hundreds of hidden passageways weave through the old quarters of Lyon.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

A tiled, multi-level garden of survival in Lyon.