The closed and crumbling Francoist luxury resort for workers is still full of life—for now.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

These two delightful animal-shaped buildings host a visitor center and wool shop.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

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

Originally slated to become a luxurious resort, this structure is now a graffiti haunt reclaimed by nature.

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

An abandoned railroad tunnel is now filled with bioluminescent bugs.

The easternmost town in Alaska can only be accessed from Canada.

Love is in the air along the small street in Brooklyn.

For those going through a life transition, a place to leave behind a piece of your former self.

Half a century after it was abandoned, this ghost town is coming back to life.

A monument to the migrants who cross the dangerous waters between North Africa and a tiny Italian island.

This Aztec structure remained hidden until the demolition of a supermarket exposed the lost temple.

The world's last remaining store of its kind.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

This spacecraft-shaped water tower is only a part of the mysterious UFO mania in this Brazilian town.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

A giant doughnut was given to the small New Zealand town of Springfield to promote "The Simpsons Movie."

This massive roadside mascot was the first version of the giant to illustrate his butt.