Opinions as to the purposes for which the nuraghe were erected are as various as those regarding their origin.
On a hillock two or three miles distant, were the ruins of a nuraghe, mellowed to a rich orange tint.
Whatever were the purposes of the nuraghe, almost all writers on Sardinia consider these ancient structures of Eastern origin.
Another village, that which surrounds the nuraghe of Su Chiai, was protected by a wall of huge stones.
It is now established that in the Giants' Tombs of Sardinia we are to see the graves of the inhabitants of the nuraghe villages.