Home to items never before seen by the public.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

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

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

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

The sign at the garden gate reads: "These Plants Can Kill."

Hot springs monkey spa in the middle of Hell's Valley.

Abandoned railway line circling the city of Paris.

An enormous, inside-out glass globe built in 1935.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

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

The world's only museum devoted to the wonders of fluorescence.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Most-visited and most-photographed slot canyon in the American Southwest.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A kaleidoscopic warehouse-maze of handmade neon signs.