A hand-built folk art installation covered with messages of God's love.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A regular looking rock with an unbelievable history.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

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

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

Site of a classic 19th-century physics experiment to prove the earth is rotating.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

France's national museum of scientific and industrial instruments.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

This ancient theater was once the home of fierce gladiatorial battles.

The world's largest reflecting pool is just two centimeters deep.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

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

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

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

A fake town founded by Western movie stars is now becoming a hip desert community.

A music-filled, booze-soaked oasis in the desert.

The legendary building that needed ghostly approval before being built.

Historic funicular railway, believed to be the shortest railroad in the world.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.