A piece of crumbling highway infrastructure was repurposed as a high-tech facility for testing racecars.

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

A beautiful oddities shop crammed with strange and morbid curiosities.

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

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

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

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

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

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

Pittsburgh's literal underground railroad.

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

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

Behold the rickety wooden glory of the world's oldest operating roller coaster.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

This public space is speckled with the eerie remnants of a defunct amusement park.