The former hotel where Tesla invented the radio.

This innocent-looking townhome is actually a subway exit.

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

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

Cryptic messages embedded in the New York City sidewalk.

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

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

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

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

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

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

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

Lie in a hammock where George Washington stood.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Slyly buy a shake in the Parker Meridien lobby.

Prove you deserve to be fed by Kenny Shopsin.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

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

Sniff the Titan Arum's rotting flesh.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.