These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

Europe’s oldest natural human mummy.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

A medieval fresco which reminds visitors that death will come for us all.

A deserted Bedouin village lines the shores of this stunning desert oasis.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

Monasteries on rock pillars, once accessible only by frayed ropes.

A remote horde of architectural treasures fit for Indiana Jones.

A priceless collection of the Nation's cryptologic history.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This abandoned radar site is slowly being taken back by the jungle, its mission cut short by the end of the Cold War.

When it opened during the final years of the embargo, all the drinks and cigars were free.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."