The remains of a failed subway in upstate New York is now an underground graffiti bunker.

An accidentally hidden library containing the ephemeral history of New York.

NYC's legendary underground network for bovine transportation.

Three-story slide through the New Museum.

This once luxurious Catskills resort is now a haunting ruin.

Reverend Jen's unique museum/living room showcases her troll collection.

A long abandoned hospital building on the outskirts of NYC.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

Tucked in the back of this amazing antique store is an important piece of medical history.

This manor in the woods memorializes one of the greatest birders of a generation.

Hike deep into the woods to explore this Gilded Age masterpiece.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

This institution pays tribute to an associate justice who protected civil rights and prosecuted Nazis.

A journey through military artifacts and the history of Cortland.

An off the grid woodland retreat that harkens back to days long forgotten.

This exhibit pays tribute to the “humble tinkerer” who invented the implantable pacemaker.

A collection of artifacts from two worldwide industries that called Endicott, NY home.

An Adirondacks museum housed in the former studio of Marcella Sembrich, the 19th century opera star most famous for her role of Mimi in "La Boheme."

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

A 10-foot-tall concrete Alley Oop statue left over from World War II now stands on the side of the road.

The only American museum exclusively dedicated to the exhibition of gloves.

This local landmark is home to art galleries and the area's only community darkroom.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.