The site of the deadly Triangle Shirtwaist Factory Fire.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

The "Seinfeld" diner.

A bit of retro transportation flair preserved in the world's largest department store.

Little Red Lighthouse under the George Washington Bridge.

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

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.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

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

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Visit the monolithic tomb of America's most famous general.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

Lie in a hammock where George Washington stood.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

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

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

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Slyly buy a shake in the Parker Meridien lobby.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

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