Cairo, Egypt, in its history[?] has had a significant number of fortified gates protecting both inner and outer city. Apart from the purpose of defense they were also used for differentiation of the varied social and economic classes. Often the gates were heavily decorated as artistic pieces.
... The racial makeup of the city is 74.65% White, 17.80% African American, 0.77% Native American, 1.94% Asian, 0.01% Pacific Islander, 2.11% from other races, and ...