Structure The oldest part of the Nuraghe consists of a central tower with three superposed chambers (18.6m high). It was built in blocks of basalt between the seventeenth and thirteenth centuries BCE. Later, during the
Late Bronze Age, four towers joined by a curtain wall with an upper balcony (no longer extant) were built around the central tower, all communicating with an inner courtyard served by a well. During the
Iron Age, the complex was surrounded by a curtain wall with seven lobes (heptalobate).
Function The real function of the nuraghe is still debated. The discoverer of Su Nuraxi, the archaeologist
Giovanni Lilliu, confirmed the traditional interpretation of fortress-site. Other archaeologists believe that the oldest part of the complex was destined for a religious purpose, refuge, civil or even parliament or registered the village chief, while the towers were added perhaps intended for military purposes and stock. ==Village==