Politics of New York City the city's main post office. The post office stopped 24-hour service beginning on May 9, 2009 due to decreasing mail traffic. Brooklyn, The Bronx, and Staten Island each have central and/or main post offices. Queens has three, each serving one of the former townships of Queens County. New York City also has federal buildings in downtown Manhattan that house buildings for the United States Attorney and the FBI. New York's military installations include the United States Army post of Fort Hamilton located in the Bay Ridge section of Brooklyn under the shadow of the Verrazano-Narrows Bridge. The bridge spans the
Boroughs of New York City form the new Nassau County. The borough of Staten Island, concurrent with Richmond County, was officially the borough of Richmond until the name was changed in 1975 to reflect its common appellation, while leaving the name of the county unchanged. There are throughout the five boroughs of New York City, many with a definable history and character to call their own. Since 1914, each of New York City's five boroughs has been coextensive with a county of New York State – unlike most U.S. cities, which lie within a single county or extend partially into another county, constitute a county