This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Salute the leader of the proletariat.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

Little Red Lighthouse under the George Washington Bridge.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Commemorating the spot where the famous scientist fed his pigeons.

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 whimsical, but often overlooked clock in Park Avenue.

The former hotel where Tesla invented the radio.

Unrepaired walls from a 1920 anarchist bomb attack.

A Natural History and Science Emporium.

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

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

Sniff the Titan Arum's rotting flesh.

100 massive sculptures in the Hudson River Valley.

Once America's longest-manned military fort, now an abandoned hulk.

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

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

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

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

A formerly abandoned mental institute, now back in business.

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

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