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

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

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.

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

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.

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

New York City's smallest piece of private property.

Read a book next to a Midtown waterfall.

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

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

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

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

A semi-scholarly approach to sex.

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

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

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

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

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

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

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

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.