This small beachside park commemorates the possibilities of discovery.

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

There are owls with glowing eyes in Herald Square.

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

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

Elevated freight railway turned wildly successful urban park.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

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

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

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

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

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

A popular European tradition makes its way to the states on one of America's most famous bridges.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

Wine bottle sculpture with a ship's stateroom inside.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

Home to first responders to Greenpoint's devastating oil fires.

A modern addition to the Greenpoint skyline.

A graffiti Mecca welcoming artists from around the world.

A semi-scholarly approach to sex.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.