This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

Site of a former hidden treehouse in New Orleans.

A picturesque garden with a surprising past.

This foolish Victorian sea fort was converted to a deluxe hotel.

Home to three historic ships from the age of Vikings.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A five-square-mile slice of Spain on the Mediterranean coast of North Africa.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

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

Connecticut's shot tower is near the end of its life.

Founded over a thousand years ago, this shrine is said to be built on the site of a warlord's harem prison.

On Japan's Tashirojima Island, cats are king.

This grand gothic brewery has been pumping out suds for over a hundred years.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

The remnants of an early American attempt at missile defense.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.