Al-Hejaz, also Hijaz ( , literally "the barrier"), is a region in the west of present-day Saudi Arabia. It is bordered on the west by the Red Sea, on the north by Jordan, on the east by Najd, and on the south by Asir. Its main city is Jeddah, but it is probably better known for the Islamic holy cities of Mecca and Medina. As the site of Islam's holy places, the Hejaz has significance in the Arab and Islamic historical and political landscape.