The largest self-built castle in the U.S., six decades in the making.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

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

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The site of the climactic scene from the classic horror film is now a historic landmark.

A layered tribute to the work of mosaicist Isaiah Zagar.

World's first "penitentiary," meant to be humane, drove men insane.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Outsider art meets paleontology at this roadside reptile repository.

This little museum in the town where zombies were born celebrates the living dead.

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

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

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

A museum dedicated to exhibiting remarkable outsider art.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The trials and tribulations of marking Poe's grave.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.