A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

This lavish room at NYC's French Embassy is a rare relic from the end of the Gilded Age.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Hundreds of antique bank vault locks on display in New York City.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Nikola Tesla's former home contains an homage hidden from plain sight.

Prove you deserve to be fed by Kenny Shopsin.

Slyly buy a shake in the Parker Meridien lobby.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

This semi-hidden Manhattan restaurant is based out of a loading dock.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A very classy 1920s-era bar right in Grand Central Station.

Become a prohibition rebel.

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

A hip bar decorated with walls of golden skulls.

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

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

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.