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

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

A modern-day Lascaux cave underneath Paris.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

A surrealist timepiece by the artist of melting clocks.

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

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

Abandoned railway line circling the city of Paris.

The site where two doves fell in love.

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

A French artist's vague warning hangs over Belleville.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

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

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

Everyone's favorite clay duo immortalized in bronze.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A beautiful medieval bridge allegedly constructed by the Devil.

A cake-themed art installation tucked away in historic Chinatown.

An enchanted arts space which assumes infinite identities.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.