This Art Deco service station has been providing tune-ups and turning heads for close to a century.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

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

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.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

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

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

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

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

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

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

This museum is dedicated to the first coast-to-coast highway.

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.

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

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

Francis Julius LeMoyne built this crematory in 1876; he was the third person to be cremated here.