A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

A legendary speakeasy bookstore returns from the brink.

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 tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

Become a prohibition rebel.

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.

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

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

Elevated freight railway turned wildly successful urban park.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

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

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

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

This innocent-looking townhome is actually a subway exit.

Three-story slide through the New Museum.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

A hip bar decorated with walls of golden skulls.

A prohibition era watering hole for the police.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

Try not to get slimed in Tribeca.

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