The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

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

The most confusing clock in New York.

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

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

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.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

Plot your trip through the city on the sidewalk.

Avoid gangster interaction while window-shopping.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

Prove you deserve to be fed by Kenny Shopsin.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

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

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

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

An unassuming secret door once led to a legendary watering hole.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A celebration of capitalism in Midtown.