A failed piece of Orientalism has become the proud symbol of a community.

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

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

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

A toxic ghost town sitting atop a massive coal fire.

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

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

Within this beautiful Pittsburgh cemetery, a unique headstone bears witness to one man's eternal love for Jaws.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

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

Could it have picked a better place to land?

The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence.

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

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The last street in Pittsburgh that's paved with wood.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

Hundreds of protractors affixed to surfaces all over the city.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

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

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

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