This public space is speckled with the eerie remnants of a defunct amusement park.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

The graffitied ruins stand hidden within the Pennsylvania woods.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

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

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

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

The oldest farmer's market in America is so ancient it was approved by the King of England.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

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

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

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A toxic ghost town sitting atop a massive coal fire.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

Blowtorches, tuna, and a jolly, chain-smoking proprietor mark this beloved street-food stand.

An abandoned Art Deco hotel nestled on the side of a wooded mountain.