The world's largest fully steerable radio telescope.

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

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

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

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Pennsylvania’s creepiest roadside attraction is a haunting example of roadside kitsch.

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

This cast-iron canine is a beloved icon among the people of Johnstown and ice hockey fans everywhere.

The site where nine miners were trapped underground for over 77 hours in 2002.

The Paul Bunyan of the steel industry.

A tiny one-room church built after one man's prayer for healing was answered.

A piece of crumbling highway infrastructure was repurposed as a high-tech facility for testing racecars.

One of the oldest surviving lock houses on the Ohio River.

One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

A piece of baseball history is preserved in a Pittsburgh parking lot.

Long before the Battle of Gettysburg occurred, dinosaurs roamed the area and left their footprints on this bridge.

The hometown of movie legend, military officer and All-American guy next door, honors this great actor.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

Originally a cemetery, this city park remains speckled with a handful of scattered gravestones.

An imposing pair of sphinxes stand guard outside this Egyptian Revival tomb.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

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

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.