Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

New York City's first Modernist house.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

This miniature village stays behind in the Breuer Building, even as the museums around it come and go.

A simple midtown bar was once the home of a secretive and exclusive club staffed by "bunnies" under Hefner's strict rules.

New York's oldest and possibly grandest keeper of books.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

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

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

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

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

Wine bottle sculpture with a ship's stateroom inside.

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."

After surviving abandonment, this powerful Latin American mural is alive again.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Jimi Hendrix's legendary recording studio in Greenwich Village.

The former hotel where Tesla invented the radio.

This narrow shop in the East Village hosts a matchmaking service for the new millennium.

New York's oldest magic store.