This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

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.

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

Visit the site of a subway powered by nothing more than air--and lots of it.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

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.

This abandoned subway station can still be seen on regular commuter trips.

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

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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The "Seinfeld" diner.

Commemorating the spot where the famous scientist fed his pigeons.

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

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A popular European tradition makes its way to the states on one of America's most famous bridges.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.