Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

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

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

An unassuming secret door once led to a legendary watering hole.

A natural gas leak provides a flickering flame beneath a waterfall.

A hands-on traveling collection of the innovative devices of yesteryear.

A legendary speakeasy bookstore returns from the brink.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

New York City's smallest piece of private property.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A terrific purveyor of natural history objects and curios.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

Origin of the blue-skinned Fugates of eastern Kentucky.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This abandoned cemetery has a dark past of bodies buried over bodies.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.