Beautiful mosaics cover the first stations opened on New York City's newest subway line.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

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

There must be a pun in this haystack somewhere...

The most confusing clock in New York.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

The famous author's cottage hideaway.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A bit of retro transportation flair preserved in the world's largest department store.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Avoid gangster interaction while window-shopping.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

An artist's cute bronze subway sculptures belie his violent artistic past.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

The "Seinfeld" diner.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The oldest surviving synagogue in New York City is now a soaring art space.

Ride the subways of yesteryear.

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

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