This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

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

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

One of the oldest Jewish cemeteries in the city, it is now overgrown with an urban forest.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

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

A way to take your secrets to someone else's grave.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

A mysterious echo seems to defy the laws of acoustics.

Toxic waste disaster that founded the Superfund program.

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

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

19th century cemetery hidden in Brooklyn's Prospect Park.

This abandoned factory on the Hudson River once churned out a million bricks a week.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.

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

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

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Discover the taste of mold.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

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