Inner walls of the hall are decorated with scenes depicting the stages of the Opet Festival. In one relief, Opet Festival is depicted in lively detail, with the pharaoh, nobility and common people joining the triumphal procession. Amenhotep IV tried to to dispose of the traditional ancient Egyptian religion in favor of a new one focused on the Sun Disk, called the Aten.
After his death, his probable son, Tutankhamun, almost certainly under the direction of elder advisors (Horemheb and Ay), reinstated the old religion and in turn attempted to erase both the memory of Akhenaten and his religion. It is also believed that Alexander the Great added few touches to this building.