This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Every summer, this shrine sets up a tiny drinking fountain reserved for thirsty apians.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An abandoned castle owned and ignored by Masons carries a cursed history.

Pilgrimage site for star-crossed lovers.

This 19th-century sugarcane plantation is one of the most well-preserved estates of its kind, including its original quarters for enslaved laborers.

The second oldest continuously operating bar in Louisiana.

Shop for books in the New Orleans house where William Faulkner once lived.

A treasure trove of rare and exquisitely detailed antiques

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

This 45-story tall abandoned skyscraper is the third tallest building in New Orleans and Lousiana.

This unique shop is full of memento mori art, antique medical equipment, secret society paraphernalia, and historical relics.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

An art installation that will challenge your understanding of reality and perception.

A series of magical limestone formations along the coastline of the country island of Antigua.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

The world's longest known cave system.