Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A 16th-century horror show built in a lovely Italian garden.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

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

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Venue for strange sideshow displays and musical acts.

Home of an evil witch famous within southern folklore.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

Continuing the tradition of the dime museum in style.

Stroll through a wonderland of stupendous moss-covered trees.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A beautiful Victorian-era cemetery, complete with a miniature village.

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

Medicinal spa created with the discharge from a geothermal energy plant.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

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

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