Manhattan is an island located in the UPPER New York Bay, and is one of the five boroughs of New York City. It is the most densely populated borough in the city, and is home to many iconic landmarks, such as the Empire State Building and Central Park. The term 'Manhattan' can refer to the island itself, or to the borough as a whole. The term is also used in the title of the Woody Allen movie 'Manhattan', which was released in 1979.