An unassuming stone building houses New York City's oldest seismic station almost 30 feet below the Bronx.

Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

Behind a grungy bodega facade, a Poblano family serves rich, home-cooked meals.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

The mysterious image is believed to show Edward Hyde, 3rd Earl of Clarendon, in a beautiful blue dress.

You don't have to be an ambassador to dine like one.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

This recipe is set in stone.

This mysterious marker puzzles pedestrians and infuriates geographers.

New York City's only radical feminist independent bookstore.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

At this hidden studio, the dying art of taxidermy is alive and well.

Spike Lee's provocative film is officially honored right where it was made, the first time a work of art was used as a secondary street name.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

A burial ground of rusting metal grave markers.

The first piece of public art dedicated to LGBT rights.

Obscure and obsolete publications are given new life as works of art.

The gilded vestiges of a sterling department store can still be found in a Brooklyn shopping center.

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.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

Waterway populated with abandoned projects, including a submarine.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.

This narrow shop in the East Village hosts a matchmaking service for the new millennium.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.