The oldest brick building in the world
You can imagine that  Abydos still has one of the oldest buildings built of mud bricks in the world, and it is the building of Shouna_Al-Zebib. King Zoser, in his hierarchical group in Saqqara, most of the opinions suggest that it was one of the forts used during the unification of Egypt in the first dynasties, specifically for the reign of King Khasekhemwy because pottery vessels bearing the name of the king were found.