The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

An Irish Memorial commemorating those who perished due to potato blight.

Offbeat arts organization that hosts exhibitions, events, and explorations.

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

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

19th century cemetery hidden in Brooklyn's Prospect Park.

Phil Mortillaro uses keys to bring art back to the Village.

Salute the leader of the proletariat.

A notorious punk house turned co-op.

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

Volunteer-run library dedicated to exploring five decades of activism history.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

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

Abandoned power station once home to a squatter community, now being developed into an arts center.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

A hands-on traveling collection of the innovative devices of yesteryear.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.