Two New York rooftops are home to the largest rooftop soil farms in the world.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

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

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

This innocent-looking townhome is actually a subway exit.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

Plot your trip through the city on the sidewalk.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Unique antiquarian shop specializing in globes, maps, and prints.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Nondescript elevator doors open to reveal a stunning, surreal world.

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

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A hands-on traveling collection of the innovative devices of yesteryear.

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

Here, exhibits come with a side of edible history.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

A terrific purveyor of natural history objects and curios.

A unique seaside cave where Aleister Crowley faked his own death.