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

Current docking place of the SS United States, the fastest transatlantic ocean liner.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

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

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

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

This jail which was in service for over a century is now open for curious visitors.

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

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Steepest flood safety railway in the entire world.

Dr Barnes' $25 billion private collection of art and arboretum.

A layered tribute to the work of mosaicist Isaiah Zagar.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

Mysterious rocks that ring musically when struck.

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

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The first American department store, and home to the largest operating musical instrument in the world.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A rare view of a preserved Victorian science museum.

An outlandish shoe shaped house built by an eccentric millionaire.

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