Visit the ancient city of Djenné, located on a small island in the Niger River, and marvel at the architectural wonder that is the Great Mud Mosque. The mosque is the largest mud-brick building in the world and is a UNESCO World Heritage site. The city itself has a rich history, being an important center of trade and Islamic learning. A boat trip to Djenné grants you the opportunity to appreciate both the city's impressive architecture and its significant cultural heritage.