A whimsical, but often overlooked clock in Park Avenue.

Elevated freight railway turned wildly successful urban park.

Red frames showcase remnants of one of New York's original subway stations.

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

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

The site of the deadly Triangle Shirtwaist Factory Fire.

New York City's smallest piece of private property.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

Try not to get slimed in Tribeca.

On the Hudson resides one of the largest clocks in the world.

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

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

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

Unrepaired walls from a 1920 anarchist bomb attack.

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

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.