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.
... For every 100 females age 18 and over, there are 100.8 males.
The median income for a household in the town is $57,038, and the median income for a family is $66,607. ...