Forts in Saudi Arabia

300px|thumb|upright=1.5|Kasbah of Sfax in [[Tunisia]]

clay and mud-brick fort in the center of Riyadh

Sharifian citadel

Benteng kuno di Qatif, Arab Saudi

thumb|Uqair

Fort in Turubah, Saudi Arabia

ancient mansion and tomb in Saudi Arabia

In traditional Islamic history, the Qamūṣ () was one of the fortresses of the poet al-Rabi ibn Abu al-Huqayq and his tribe, who were Jews, the Banu Nadir. The fortress was situated near Khaybar in what is now Saudi Arabia. The fortress was attacked by Muslim forces and defeated circa 629/30 CE. It was after this event that Muhammad married Safiyya bint Huyayy. The Jewish presence in the region has been attested to the late seventh century who pioneered the cultivation in the area.