Industrial in Pennsylvania

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

The graffitied ruins stand hidden within the Pennsylvania woods.

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

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Where the oil industry began.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

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

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!

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

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

This demolished goliath of American industry once loomed over the depressed town it once made thrive.