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

This dramatic rail curve was once the target of a failed Nazi attack.

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

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

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

Hundreds of protractors affixed to surfaces all over the city.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest collection of intentionally useless inventions.