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
Flags of New York City to which is added an arc of five five-pointed stars (representing each of the five boroughs) in blue above the seal. The dimensions of the Mayor's flag are set at 33 inches by 44 inches. The New York City Council uses a variant of the city flag, with the word "COUNCIL" underneath the seal. Currently, only Brooklyn and the Bronx have official borough flags. The other three boroughs have standard designs in current use, though they have never been officially adopted. Staten Island borough lawmakers pushed to have their flag officially recognized by the state in the 1990s and early