This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The oldest farmer's market in America is so ancient it was approved by the King of England.

This Old Testament garden features 100 plants from biblical times.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A toxic ghost town sitting atop a massive coal fire.

Mysterious rocks that ring musically when struck.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

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

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

Superfans of The Shawshank Redemption can take a driving tour of most of the films real locations.

An abandoned asylum incorporated into a college campus.

Medical history museum featuring a lovely doctor's office from the 1800s.

Deep scars on the earth left by the Ice Age.