Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

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

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Revolutionary War casualties fill the only 17th century structure remaining in Manhattan.

Avoid gangster interaction while window-shopping.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

The site of the deadly Triangle Shirtwaist Factory Fire.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

The oldest living tree in Manhattan comes shrouded in sinister legend.

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

This slender three-story building has also had several famous residents.

These ornate manhole covers were used for a now-forgotten purpose.

New York City's smallest piece of private property.

The first piece of public art dedicated to LGBT rights.

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

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

The only remaining building in New York to see the inauguration of a president is being slowly overtaken by a grocery store.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

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.

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

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.