A once grand hotel is being retaken by the wilderness it once capitalized on.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Homemade rockets, dinosaurs, and robots make this New York small business much more than a furniture store.

The lost town of Neversink, sunk by New York City.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Reforestation in action is the main attraction in this abandoned quarry.

The remnants of a luxurious resort that saw its peak in the 1970s and 1980s has been abandoned since 2009, leaving behind the wreckage of both the hotel and a beautiful ice skating rink.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The largest known open fault in the United States is basically a giant natural refrigerator.