A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A crumbling hospital from the 1850s on Roosevelt Island.

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

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

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.

The only subway station in the city that still makes use of gap fillers.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A Yiddish theater turned movie house turned rock and roll landmark turned gay disco turned bank.

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

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

Avoid gangster interaction while window-shopping.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

There must be a pun in this haystack somewhere...

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

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

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The "Seinfeld" diner.

Visit the monolithic tomb of America's most famous general.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

Read a book next to a Midtown waterfall.

A Manhattan office building is home to the world's largest chess board.

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