This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A Manhattan office building is home to the world's largest chess board.

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

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

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

New York City's smallest piece of private property.

Elevated freight railway turned wildly successful urban park.

The notorious headquarters of a corrupt political machine.

The most confusing clock in New York.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

Salute the leader of the proletariat.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The "Seinfeld" diner.

A Gothic-style abode built to accommodate the church's three resident peacocks.

Peek through the gates at this oasis from the city, full of Old English charm.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

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

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.