The site of the deadly Triangle Shirtwaist Factory Fire.

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

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.

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

Avoid gangster interaction while window-shopping.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

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

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

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

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

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

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

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Sniff the Titan Arum's rotting flesh.

A dilapidated dock tells the story of Titanic's missed arrival.

A modern zoetrope on the New York City subway.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Decades before the scandal, this staircase on the river was a literal "water gate."

The most accurate timepiece in the world.

Perhaps the most scandalous statue of America's first president.

The oldest continuously operating fish market in the United States.

There’s a hidden military meme engraved on the World War II Memorial.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.