Midtown Manhattan, or simply Midtown, is an area of Manhattan, New York City home to world-famous commercial zones such as Rockefeller Center, Broadway, and Times Square. Midtown Manhattan is the largest central business district in the world and is home to the city's tallest and most famous buildings such as the Empire State Building and Chrysler Building. The core of Midtown Manhattan is from about 31st Street to 59th Street between Third and Ninth avenues, about two square miles (this is the area most commonly referred to as "Midtown.") The "Plaza District", a term used by Manhattan real estate professionals to denote the most expensive area of midtown from a commercial real estate perspective, lies between 42nd Street and 59th Street, from Third Avenue to Seventh Avenue, about a square kilometer or half a square mile.