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

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

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

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

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

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

More gold than anywhere else, ever.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

New York City's smallest piece of private property.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

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

The "Seinfeld" diner.

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

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Try not to get slimed in Tribeca.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A crumbling hospital from the 1850s on Roosevelt Island.