The Gedi mosques are a group of religious structures located in the heart of ancient Swahili city of Gedi, also known as Gede. Gedi was likely occupied between the 11th and 17th centuries CE, and was a typical Swahili "stone town" located on the East African coast in modern Kenya. The ruins of Gedi include a walled town and its suburbs. The main built area consists of houses, a palace, and some mosques. Two of these mosques have been identified as "Great Mosques" by Pradines (2003). Open areas in the settlement have been identified as zones where structures constructed of perishable materials were located. Like most of the surviving structures at Gedi, the mosques were constructed using coral limestone extracted from the Indian Ocean and cemented with mud-lime mortar. Foundations tend to be about a foot deep and not much wider than the walls they support. The mosques and other structures were built along a planned grid. The mosques are associated with wells and washing facilities for use before (and after?) ...