The Great Mosque of Djenne is a large banco or adobe building that is considered by many architects to be one of the greatest achievements of the Sudano-Sahelian-architectural style. The mosque is located in the city of Djenne, Mali, on the flood plain of the Bani River. The first mosque on the site was built around the 13th century, but the current structure dates from 1907. As well as being the centre of the community of Djenné, it is one of the most famous landmarks in Africa. Along with the "Old Towns of Djenni " it was designated a World Heritage Site by UNESCO in 1988.