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

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

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

A beautiful, historic location open to the public.

Because holiday cheer is at its finest when it includes eerie mannequins, right?

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

"A hideous albatross in the Hudson River Valley."

Astonishing collection of helmets, scientific instruments, and medical models.

This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

Said to be haunted, this tower was constructed by a sugar importer as a gift to his wife.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

Eight whimsical acres of metal art.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

A unique work of art that was created without permission.

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

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

This statue commemorates the importance of hat manufacturing to Danbury, once known as the "Hat City of the World."