A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

Steepest flood safety railway in the entire world.

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

This museum is dedicated to the first coast-to-coast highway.

Pennsylvania's own Roswell-style UFO mystery.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

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

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

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

True to his word, George Swanson is buried in his white 1984 Corvette.

An outlet for connecting to memories of lost loved ones and saying goodbyes you never got to say.

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

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

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

The Paul Bunyan of the steel industry.

This icon of the Atomic Age now lays dormant.

Memorializing an American tragedy of massive proportions.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

This historic furnace was once used to produce cannonballs during the Civil War.

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

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Housing the history of a small Ohio town that is known to some as the pottery capital of the United States.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.