Whimsical artist house in the New Jersey woods.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

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

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

One of the first commercially successful anthracite-powered iron-making operations in North America.

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

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

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

A failed piece of Orientalism has become the proud symbol of a community.

Mysterious rocks that ring musically when struck.

The graffitied ruins stand hidden within the Pennsylvania woods.

It would take 35 firetrucks to fill this enormous glacial pothole.

The library of every book lover's dreams.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

A world-class collection of mechanical musical instruments and automata.