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

Historic medieval fortified city in southwest France.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A deserted hodgepodge of experimental structures designed by nearby university students.

Shop selling 500 flavors of soda has something for everyone.

Along a California highway is a kind of Jurassic Park made of metal.

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Resting place of Hollywood's immortals is also site of summer film screenings.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

Where monkeys run wild and the humans are caged.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

A mysterious castle built as a monument to lost love.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Hidden in one of the skyscrapers on Bunker Hill, this museum features an 1895 stagecoach and peers into California’s gold-lined history.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

Detailed facade of a brownstone in Boerum Hill.

Elevated freight railway turned wildly successful urban park.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

A giant donut stands as a popular symbol of Los Angeles iconography.

Made famous by cable TV, this oddball collection of antiques and collectibles is a cut above the rest.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.