An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

A forsaken wonder in the middle of the East Side neighborhood.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

A winding, cliffside stretch of road overlooking the Delaware River.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

Three acres of mythology-inspired sculptures are visible from the highway.

This Central New York ghost town was once a prosperous railroad community.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

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

This old cement mine has been used as everything from a mushroom farm to a recording studio.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

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

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

A natural gas leak provides a flickering flame beneath a waterfall.

An abandoned castle owned and ignored by Masons carries a cursed history.

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

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

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

The library of every book lover's dreams.

One man's swirling six-acre monument of stone.