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

One of only two commuter aerial tramways in the United States.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

A semi-scholarly approach to sex.

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

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

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

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

Try not to get slimed in Tribeca.

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

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A crumbling hospital from the 1850s on Roosevelt Island.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The final resting place and once home of the Bandit Queen of the West.

This highway overpass was named after the tragic disappearance of a young mother who got mixed up with the wrong people.

The world's only museum devoted solely to the art and collection of action figures.

The largest collection of political commercials in the world.

Home to the story of the outlaw turned funhouse mummy, Elmer McCurdy.

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.