This dramatic rail curve was once the target of a failed Nazi attack.

The brainchild of Eleanor Roosevelt, her "Little Village" was a collectivist dream.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

Priceless space junk on display in front of a local Dairy Queen.

This university transit system is a 1970's vision of the future.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

There are more than 4 million bricks inside this unofficial Lego museum in a former middle school.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence.

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

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

After covering almost 1.5 billion acres, the survey's still not finished.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Pennsylvania's own Roswell-style UFO mystery.

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

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.