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

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

Yo, Adrian!

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

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

In which a local geological marvel becomes a quaint roadside attraction.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This little museum in the town where zombies were born celebrates the living dead.

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

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

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

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

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

An abandoned stretch of highway, deteriorating next to the operational one.

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

A toxic ghost town sitting atop a massive coal fire.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

In an odd geographic anomaly this city borders two different states on opposite sides of town.