The classic Atari game's iconic aliens have invaded downtown San Diego.

The world's largest military aircraft cemetery.

The fading, forgotten remains of a once bright and booming factory.

This bomb shelter-themed bar has barely changed since it opened.

Two flush headstones mark the only known graves to be embedded in an airport runway.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

This Art Deco airport was once deemed “the air hub of the Americas.”

The beautiful, fruit-covered facade hints at this building's former life.

The curiosities and wonders of pharmacy in a delightful historic building.

The world's tallest statue of an American hero.

This memorial marks the devastating day that Texas City was destroyed in a daisy chain of exploding ships.

In the late 1990s, a mechanic and fan bought this iconic sportscar back from the dead.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

A maritime museum holding the remains of Blackbeard's pirate ship.

The location where the American Revolution ended.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Introducing the Green Fairy to her fawning masses.

This enormous World War II relic is one of the largest wooden structures in the world.

A lightship turned museum, outfitted with artifacts from the vessel's past as part of the U.S. Lighthouse Service.