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

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

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

A notorious punk house turned co-op.

The most confusing clock in New York.

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

Tucked in the back of this amazing antique store is an important piece of medical history.

Once called Winthrop Park in 1889, home to a decidedly sexy tribute to the Monitor vs. Merrimac battle.

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

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

Neoclassical bank designed by NY architects Helmle & Huberty.

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

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

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.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

Constructed in the 1920s, this former pencil factory is now an office building.

Built as a home for the Union Porcelain magnate in 1867, now the Greenpoint Reformed Church and home to a ceramic mystery.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

A modern addition to the Greenpoint skyline.

Enormous one time fiber mill now houses local artists and small businesses.

Holding the most bodies of any cemetery in the United States.