Architecture of New York City high crime, prompting many to consider these projects a failure. A distinctive feature of residential (and many commercial) buildings in New York City is the presence of wooden roof-mounted water towers, which were required on all buildings higher than six stories by city ordinance in the 19th century because the municipal water pipes could not withstand the extraordinarily high pressure necessary to deliver water to the top stories of high-rise buildings. New York City is located on one of the world's largest natural harbors. The boroughs of Manhattan and Staten Island are their own islands, while Queens and Brooklyn are
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