Chellah

The Chellah or Shalla (Berber languages: Sla or Calla; Arabic: شالة‎), is a medieval fortified Muslim necropolis located in the metro area of Rabat, Morocco, on the south (left) side of the Bou Regreg estuary. The Phoenicians established a trading emporium at the site. This was later the site of an ancient Roman colony in the province of Mauretania Tingitana.
Salā was the name given to the city founded by the Muslim conquerors of North Africa, which was mostly abandoned during the Almohad era, then rebuilt by the Marinids in the 13th century. The ruins of their medieval fortress are still extant.
The Berber Almohads used the site as a royal burial ground. The Marinids made the site a holy necropolis, or chellah, and built a complex that included mosque, minaret, and royal tombs. The tall minaret of the now-ruined mosque was built of stone and zellige tilework, and still stands.
Contrary to legend, the corsairs of Salé did not actually operate out of Salé (called "Old Salé"), but out of the city that would later become known as Rabat, ("New Salé") on the south (left) bank of the Bou Regreg.