One-time largest man-made structure in the world will be a park in 30 years.

Deliciousness abounds at a Guatemalan restaurant masquerading as a pizzeria.

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

This block in downtown Brooklyn was a hotbed of antislavery activism along the Underground Railroad.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

Despite not growing anywhere near New York City, bananas are ripened in a pressurized room in the Bronx using precise banana science.

This mysterious marker puzzles pedestrians and infuriates geographers.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

A burial ground of rusting metal grave markers.

The oldest living organism in New York City. Maybe.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

A big shiny gin and whiskey distillery in Sunset Park.

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

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

Brooklyn's Barkaloo Cemetery is the resting place of a scant two bodies.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.