Manhattan together with Brooklyn, Queens, The Bronx, and Staten Island make the five boroughs of New York City. Each of them is better thought of as an independent city oneself. Whereas, Manhattan surely consists of many more than three clusters indicated as Lower, Midtown, and Upper. Neighborhoods are what divides the city best.
Central Park, Museums and snobbish dogs walking by.. this area is full of art, antiques, book stores most expensive apartments in town facing the main (and only) big park.