12a: From the Eneolithic to the Bronze Age, the territory of Norbello was dotted with over thirty nuraghes, of which there are currently 28 testimonies. Among the circular nuraghes, with vertical development, the Ruiu and Perdu Cossu are well preserved: the latter is unique for its architectural specifics. Among the eleven giant tombs, ranging from the archaic phases of the nuragic to the more evolved, the two of Perdu Cossu with the nearby Tanca Suei are easily accessible. Particularly interesting scientifically for their composite structures, with archaic elements and evolved overlaps (parts of arched stele and worked blocks using isodomic techniques), they are also a destination for passionate enthusiasts of radioesthesia, who believe they gain health benefits from exposure to the beneficial magnetism released – according to this “school of thought” – right at their entrance. (Municipality of Norbello). The photos of the nuraghe Ruju, in Norbello, are by Nicola Castangia and Nuraviganne. Those of the nuraghe and giant tomb of Perdu Cossu I, also in the territory of Norbello, are by Valentino Selis, Bibi Pinna, Nicola Castangia, Francesca Cossu, and Marco Cocco.
