High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Natural time capsule containing an alien ecosystem.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Its buzzing collection honors vibrator history.

A Hawaiian stairway to heaven—that you can't climb.

A winding path built in secret on the edge of the continent.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

The site of the climactic scene from the classic horror film is now a historic landmark.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An homage to everyone's favorite prehistoric cartoon family.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Shop selling 500 flavors of soda has something for everyone.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One person's lost luggage is another person's treasure.

Furniture tries to escape an abandoned building in San Francisco.

The oldest stone house in Paris was built by its most famous alchemist.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.