This spectacular track has run continuously since 1882.

The fading, forgotten remains of a once bright and booming factory.

The site of the first battle of World War II.

This former steel and coal plant is now a neon-lit industrial fantasia.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

An acoustic anomaly with a mysterious cause.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

One of the American Southwest's most extensive collections of Navajo rock art.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

Sleep in a glass pod dangling off a cliff.

The hottest place on the planet.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

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.

This Costa Rican topiary park is a surreal garden of unearthly delights.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

The original place where water met land in the City by the Bay is outlined in brass.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.