The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

The Hudson River School comes alive at this palatial estate.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

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

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

"A hideous albatross in the Hudson River Valley."

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.

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

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

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

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

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

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

An artist's cute bronze subway sculptures belie his violent artistic past.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

The "Seinfeld" diner.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

A dilapidated dock tells the story of Titanic's missed arrival.