An abandoned 1920s school with a mysterious history.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This abandoned amusement park was built on a site with a dark history.

Decommissioned NYC subway cars are dumped into the ocean to create this underwater wildlife habitat.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

A scenic fort on the harbor protected Philadelphia from an attack that never came.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Century-old shop, specializing in Occult products.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

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

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

This secluded walking trail is a hidden gem of a Pittsburgh park.