The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

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

This park contains a number of standing stones meant to heal and inspire.

Yo, Adrian!

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

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

Dr Barnes' $25 billion private collection of art and arboretum.

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

The abandoned coal loading dock is a canvas for unsanctioned art.

A park full of outsider art, created by college students studying outsider art.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

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

For decades, this waterfall remained hidden because of an artificial dam.

A fiberglass jungle, deep in the wilds of the Cleveland suburbs.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Deep scars on the earth left by the Ice Age.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

A lush green oasis in the middle of Chicago.

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.