On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

Over fifty whirling pools left by the glacial age.

This historic park site contains the last remnants of a once bustling canal system.

This historic railway museum may have lost its passengers but not its love for trains.

A diorama of the Civil War, fought by cats.

Pittsburgh's literal underground railroad.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

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

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

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

A toxic ghost town sitting atop a massive coal fire.

Believe It or Not, Ripley once called this chiseled mountainside “New York’s Mount Rushmore”.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.