A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

A graffiti Mecca welcoming artists from around the world.

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

A crumbling hospital from the 1850s on Roosevelt Island.

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

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

A staggering collection of photographs depicting medical, social, and historical change.

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.

HBO series' stage tucked away in a Greenpoint lot is the largest theatrical set of its kind in the United States.

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

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

A semi-scholarly approach to sex.

Nikola Tesla's former home contains an homage hidden from plain sight.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

This collection of grinning ephemera has grown from basement to Brooklyn.

Tucked in the back of this amazing antique store is an important piece of medical history.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

A living archive of urban activism and space reclaimed.

This former crime corner has been turned into an eclectic community center.

This 220-year-old house is a reminder of New York City's Dutch past.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.