The Tomb of Askia in Gao, Mali, is a 17-meter-high pyramidal structure built around 1495 as the burial place of Askia Mohammad I, a prominent emperor of the Songhai Empire. Recognized as a UNESCO World Heritage Site, it exemplifies Sudano-Sahelian architecture, featuring a tomb, two mosques, a cemetery, and an assembly ground. The complex remains an active mosque and cultural center, with later additions including expanded mosque structures, a perimeter wall, and modern amenities like electricity. Regular replastering maintains its mud-built structure, preserving its historical and architectural significance.