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

Unrepaired walls from a 1920 anarchist bomb attack.

Try not to get slimed in Tribeca.

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

Plot your trip through the city on the sidewalk.

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

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

Phil Mortillaro uses keys to bring art back to the Village.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

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

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

The only subway station in the city that still makes use of gap fillers.

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

Finally, you don't have to be a pious Swedish seaman to relax like one.

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

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

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

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

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'