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;
2 (New York City Subway service) 2 (New York City Subway service) The 2 Seventh Avenue Express is a rapid transit service in the A Division of the New York City Subway. Its route emblem, or "bullet", is colored since it uses the IRT Broadway–Seventh Avenue Line through most of Manhattan. The 2 operates at all times between 241st Street in Wakefield, Bronx and Flatbush Avenue–Brooklyn College in Flatbush, Brooklyn; limited rush hour service originates and terminates at New Lots Avenue in East New York, Brooklyn instead of Flatbush Avenue. Daytime service makes local stops in the Bronx and Brooklyn and express in Manhattan; late night