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

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

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

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.

The 28-foot granite map plots the locations of 40 theaters in New York City.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

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

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

Plot your trip through the city on the sidewalk.

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

Try not to get slimed in Tribeca.

A touching tribute to the "Queen of Soul."

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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."

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

Visit the site of a subway powered by nothing more than air--and lots of it.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

For 20 years, local pumpkins have met their fate on the iron fence surrounding this Cobble Hill home.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.