🏰 How Great Zimbabwe Was Built The walls of Great Zimbabwe were built between the 11th and 15th centuries by the Shona ancestors. They used granite blocks cut from nearby hills. Instead of cement or mortar, they carefully placed stones one on top of the other so perfectly that the walls have lasted for centuries. The biggest wall is the Great Enclosure, which has walls up to 10–11 meters high and more than 250 meters long. ⏳ How Long It Took Historians believe the building process stretched ove