A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

Dedicated to preserving the history of free Black communities in Brooklyn and beyond.

An 1883 schoolhouse now home to collective of artists.

This nostalgic blast from the grooming past is also a working barbershop.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

One of the few Glatt kosher delis in the United States is a cornerstone of its Hasidic neighborhood.

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

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

Where the four original members of the Ramones hung out and revolutionized punk rock.

A Ukrainian church canteen doles out hearty fare in an East Village basement.

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

Failed state-supported institution meant to rehabilitate students with intellectual disabilities.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

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

A ruthless Soviet relocation campaign birthed a new cuisine, and this humble restaurant.

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

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

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

Collect holy water from a Bronx grotto.

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

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

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

Play heads or tails with thousands of different coins.