Architecture of New York City spread outward from where it originally began at the southern-tip of Manhattan Island into surrounding areas. In order to house the burgeoning population, farm land and open space in Upper Manhattan, the Bronx, Queens, Brooklyn, and Staten Island were developed into neighborhoods of brownstones, apartment buildings, multi-family and single-family homes. The density of this new construction generally depended on the area's proximity and accessibility to Manhattan. The development of these areas was often spurred by the opening of bridges and the connection of boroughs via public transportation. For example, the Brooklyn Bridge was completed in 1883 and connects Brooklyn and
Staten Island the five boroughs of the expanded city. Although consolidated into the City of Greater New York in 1898, the county sheriff of Staten Island maintained control of the jail system, unlike the other boroughs who had gradually transferred control of the jails to the Department of Correction. The jail system was not transferred until January 1, 1942. Today, Staten Island is the only borough without a New York City Department of Correction major detention center. The construction of the Verrazzano-Narrows Bridge, along with the other three major Staten Island bridges, created a new way for commuters and tourists to travel