Cairo is noteworthy because it is expanding in three directions: lengthways, extending as far as Wahet Omar in the north and Beni Suef in the south; widthways, capturing the governorates of Giza and Qalyoubiya (and some predict that within four years Cairo will occupy Suez, Ismailia, Fayoum and Ain Sokhna); and vertically, with the time needed to demolish a villa and build a residential tower in Cairo now less than eleven hours.