Kilwa Kisiwani is an island located off the coast of Tanzania, known for its rich history and archaeological significance. It was once a thriving trading port from the 9th to the 16th centuries, connecting East Africa with Arabia and India. The island features impressive ruins, including the Great Mosque and the Sultan's Palace, which showcase the architectural styles of the time. Today, Kilwa Kisiwani is a UNESCO World Heritage Site, recognized for its cultural heritage and historical importance. The site attracts researchers and tourists interested in the Swahili Coast civilization and the influence of trade on the region's development.