Djenné, one of Mali's oldest towns, is known for its distinctive adobe architecture and historical significance as a center of trans-Saharan trade. Located in the Inland Niger Delta, it flourished between the 15th and 17th centuries as a hub for commerce and Islamic scholarship, closely linked to Timbuktu. The city's most iconic landmark is the Great Mosque of Djenné, rebuilt in 1907, which remains the world's largest mud-brick structure. Nearby, the archaeological site of Djenné-Djenno provides evidence of one of sub-Saharan Africa's earliest urban settlements. Djenné and its historic sites were designated a UNESCO World Heritage Site in 1988.