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

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

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

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

Read a book next to a Midtown waterfall.

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

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.

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.

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

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

Try not to get slimed in Tribeca.

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.

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

A crumbling hospital from the 1850s on Roosevelt Island.

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

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

"Call for the doctor, call for the nurse... Vote!! said the lady with the alligator purse."

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

The home, museum, and death site of Kodak's influential founder.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

This historic Victorian hotel has a scandalous history of affairs and murder.