Great Mosque of Ksar el-Kebir

The Great Mosque of Ksar el-Kebir is one of Morocco's oldest and most significant religious structures. Located in the historic El Oued neighborhood, it was built using large stones of Roman origin, some featuring Latin and Amazigh inscriptions. Local tradition and archaeological evidence suggest the site was originally a church in the late Roman era before becoming a mosque during the Idrissid period. A unique feature of the mosque is its ancient underground basin designed to collect and store water.