One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

A fifth-century temple improbably built into the side of a cliff.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The most alien-looking place on Earth.

Walk 2,300 feet above the ground on the "Troll's Tongue."

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Pompeii's less famous neighbor is still revealing her secrets.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A gargantuan crystal kingdom.

Museum preserving torture methods from the past.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

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

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

A taste of the macabre Tokyo's ritzy shopping district.

The atmospheric road was never meant to be so creepy.

Rising from the sea like a stone monster.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Thousands of well-dressed mummies below a monastery.

A submerged archeological park still holds the wonders of a Roman Sodom.