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

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

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

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

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

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Read a book next to a Midtown waterfall.

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

A hip bar decorated with walls of golden skulls.

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

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

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

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.

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

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

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

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

A crumbling hospital from the 1850s on Roosevelt Island.

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