Manhattan business days, the influx of commuters increases this number to over 3.9 million, or more than 170,000 people per square mile (65,600/km). Manhattan has the third-largest population of New York City's five boroughs, after Brooklyn and Queens, and is the smallest borough in terms of land area. Many districts and landmarks in Manhattan are well known, as New York City received a record 62.8 million tourists in 2017, and Manhattan hosts three of the world's 10 most-visited tourist attractions in 2013: Times Square, Central Park, and Grand Central Terminal. The borough hosts many prominent bridges, such as the Brooklyn Bridge;
New York City Department of Education itself made no specific reference to a "Department of Education of the City of New York", the bylaws subsequently adopted by the Board provided that the 13-member body "shall be known as the Panel for Educational Policy", which together with the Chancellor and other school employees was designated as the "Department of Education of the City of New York". The education headquarters were moved from 110 Livingston Street in downtown Brooklyn to the Tweed Courthouse building adjacent to New York City Hall in Manhattan. In 2003, the districts were grouped into ten "regions", each encompassing several elementary and middle school