Abandoned in 2009, this once popular resort destination now stands frozen in time.

This enormous abandoned factory is now a makeshift graffiti gallery.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

The 44,000-ton aircraft carrier was purposely sunk to create an artificial reef teeming with life.

Though nicknamed the “Russian Freighter,” this ship was actually sunk off the coast of Pensacola by the U.S. government in a top-secret operation.

A local landmark with generations of spraypainted messages, and more being added each day.

The "worst battleship ever built" is enjoying a grand second act, submerged 30 feet in the Gulf of Mexico.

One man's grief over the national tragedy has manifested in a pod of homemade whales on his front lawn.

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.

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

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

Secret gardens just a few miles from downtown Atlanta.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

An underground magnet for ever-changing street art.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

The world-record holder for the longest bridge stretching continuously over water.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

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

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

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