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

A French library that makes sure its love of books is writ large... giant in fact.

A unique underground structure dating back to the 1st century BC.

France's most famous cemetery, with some of its most curious tombs.

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

One of Jeff Koons’s largest sculptures and his first commemorative work.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

This museum houses an imposing skeleton army comprised of creatures great and small.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

A haunting collection of the vanished and disappearing natural world.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

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

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.

A font of vintage porn on the silver screen.

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

19th century pendulum and a clock restored by a rogue group of guerilla artists.