It can be the old section of an Arab city in north Africa, or the name of the city where Muhammad is entombed
The columns are the last remaining sections of the mosque which date ... intricate 
Arabic calligraphy marking the names of the Prophet Muhammad's ... of pilgrims 
heading to the twin holy cities of Mecca and Medina each year the ... the Masjid 
an-Nabawi in Medina which marks where Muhammad is buried.