The Peulh are pastoralists originating in the arid north of Senegal. Most Peulh are Muslim.
The Great Mosque of Djenné in Mali is the largest mud brick building in the world and is considered by many architects to be the greatest achievement of the Sudano-Sahelian architectural style, albeit with definite Islamic influences. The mosque is located in the city of Djenné 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. Along with the "Old Towns of Djenné" the Mosque was designated a World Heritage Site by UNESCO in 1988.