Djamaa el Kebir — Wikipedia

The Djamaa el Kebir or Great Mosque of Algiers (Arabic: الجامع الكبير, romanized: djama' el-kebir), is a mosque located in the city of Algiers, Algeria. Built in 1097, it is one of the few remaining examples of Almoravid architecture. Although it has undergone other additions and reconstructions since its foundation, it is the oldest mosque in Algiers and is said to be one of the oldest mosques in Algeria after Sidi Okba Mosque and Sidi Ghanem Mosque. The mosque is located in the Casbah of Algiers, a UNESCO World Heritage Site.