This church in Pittsburgh is home to the largest collection of religious relics in North America.

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

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

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

Steepest flood safety railway in the entire world.

Pennsylvania's own Roswell-style UFO mystery.

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

Hundreds of protractors affixed to surfaces all over the city.

Pittsburgh's literal underground railroad.