As of February 2004, Yemen is divided into twenty governorates (muhafazat) and one municipality called "Amanat Al-Asemah" (the latter containing the capital, Sana'a)
Health care facilities are relatively poor, especially outside major cities.
With Jebel Nugum towering over it, Sana'a sits on the narrowest point of a major mountain plateau, (2.286 metres) above sea level. The region's volcanic origin and regular rainfall make it fertile and it enjoys a temperate climate throughout the year with the occasional sharp frost in the small hours of winter nights. One legend tells of its founding by Shem the son of Noah.