A quirky collection of outsider art made from automobile parts.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The site of a tragedy in 1908 that claimed the lives of 171 people and changed fire safety laws across the state.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

The ruined remains of a coal mining ghost town are hidden within the woods.

Genesis of modern hydroelectric power.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

10,500 square feet of pinball housed in former dollar store and home to the last playable "Thunderball."

These disused steel furnaces are now haunting ruins that may one day be a national park.

This little museum in the town where zombies were born celebrates the living dead.

At this small shop off a dirt road in the forest, the specialty is eel the owner caught and smoked himself.

An ideal wedding spot that is almost too ideal.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

This giant disembodied horse head seems to balance impossibly on its nose.

A glittering Thai Buddhist temple in suburban Pennsylvania.

Dr Barnes' $25 billion private collection of art and arboretum.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Home on the Hillside, and home of the first breakfast cereal.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.