A mysterious echo seems to defy the laws of acoustics.

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

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

A castle built for love, and abandoned due to heartbreak.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

Records of the dead describe the myriad odd ways people used to die.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

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.

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

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

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

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.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

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

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

This small, hidden cove is home to abandoned boats.

The site of a tragic massacre that spawned a multimedia franchise.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."