Commemorating the spot where the famous scientist fed his pigeons.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

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

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Unrepaired walls from a 1920 anarchist bomb attack.

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

The former hotel where Tesla invented the radio.

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

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

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

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

Avoid gangster interaction while window-shopping.

The oldest living tree in Manhattan comes shrouded in sinister legend.

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

“Invented in Key West, Perfected in Brooklyn."

The first and only carousel with a lineup entirely of insects.

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

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

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

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

Wine bottle sculpture with a ship's stateroom inside.

Lie in a hammock where George Washington stood.

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