One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

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

The "Seinfeld" diner.

Ride the subways of yesteryear.

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

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

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

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

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

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.

New York's oldest magic store.

Try not to get slimed in Tribeca.

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

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

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.

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

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

A crumbling hospital from the 1850s on Roosevelt Island.

An enchanted arts space which assumes infinite identities.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

No shoes allowed on this trail, which is designed to be experienced barefoot.