Waterway populated with abandoned projects, including a submarine.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

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

A decommissioned military complex that's now a modern industrial park.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

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

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

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

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

A winding, cliffside stretch of road overlooking the Delaware River.

A modern zoetrope on the New York City subway.

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

Walk into the 19th century without leaving Brooklyn.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

An annual extravaganza of Broadway theater memorabilia.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

The notorious headquarters of a corrupt political machine.