Where the oil industry began.

The site of America's first commercial oil well essentially disappeared after the town went bust.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

The largest piece of cut lead crystal adorned a grave for 75 years and is now the shining star of a glass museum.

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

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

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

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

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

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

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.