1% of Greenland's entire population used to live in this single building, which is now slated for demolition.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

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

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

Visit the monolithic tomb of America's most famous general.

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

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

Plot your trip through the city on the sidewalk.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

Slyly buy a shake in the Parker Meridien lobby.

The "Seinfeld" diner.

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

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

More gold than anywhere else, ever.

New York City's smallest piece of private property.

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

A semi-scholarly approach to sex.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

New York's oldest magic store.