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

The most confusing clock in New York.

Little Red Lighthouse under the George Washington Bridge.

The notorious headquarters of a corrupt political machine.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

Rummage through this sunken ship, but leave your scuba gear at home.

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

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

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

Two New York rooftops are home to the largest rooftop soil farms in the world.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

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.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

New York City's only preserved family home from the 19th century.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

Avoid gangster interaction while window-shopping.

A hidden "place of interment for gentlemen."

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

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

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

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