Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

The site of a tragic massacre that spawned a multimedia franchise.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

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