This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

It would take 35 firetrucks to fill this enormous glacial pothole.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

America's first serial killer rests in anonymity.

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

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

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

Pennsylvania's own Roswell-style UFO mystery.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

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

This park contains a number of standing stones meant to heal and inspire.

Pennsylvanian mass grave and possibly mass murder.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

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

The Home and murder site of the witch of Rehmeyers Hollow.

There aren't too many operational funiculars around, but Pittsburgh has two!

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

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