Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

During the holidays, a vintage subway train whisks New Yorkers back in time.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

West Point’s only monument to a woman veteran stands above an empty grave.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

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

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

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

A library of only unpublished manuscripts.

"Enter and be entertained or annoyed by Dada in Walla Walla."

A simple plaque remembers an act of WWI terrorism that obliterated an island and forever scarred the Statue of Liberty.

Crammed into several rooms of a Staten Island home, this museum is a vodka-soaked paean to the pleasures of drinking.

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

A burial ground of rusting metal grave markers.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

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

An accidentally hidden library containing the ephemeral history of New York.

More gold than anywhere else, ever.

A celebration of capitalism in Midtown.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Little Red Lighthouse under the George Washington Bridge.