The rare American Civil War-era weapon was never fired in anger.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

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

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

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The oldest continuously occupied public building in the United States.

Electrical pylon in the shape of Disney's beloved mouse.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

The world's second largest single-dish radio telescope, once used to contact E.T.

Red frames showcase remnants of one of New York's original subway stations.

A collaborative art project that transformed a neighborhood in NYC's Queens.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Salute the leader of the proletariat.

The notorious headquarters of a corrupt political machine.

An artist's cute bronze subway sculptures belie his violent artistic past.

A bit of retro transportation flair preserved in the world's largest department store.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

One of only two commuter aerial tramways in the United States.

A semi-scholarly approach to sex.

Try not to get slimed in Tribeca.