An access flight of steps and a podium adorned by elegant columns delimits the votive areas, in a context of perfect alignment. These ruins of the Temple of Antas are substantial and have reached the present day surrounded by nature, taking on the appearance of a silent Avalon in the springtime. The sanctuary was built from local limestone and is located in an evocative valley, in the Fluminimaggiore territory, dominated by Mount Conca s'Omu. In the springtime, the surrounding sacred area, which was built in a later period, is carpeted by a meadow covered in white daisies.

After having lived through the Carthaginian (around 500 BC) and Punic-Hellenistic (300 BC) periods, during which time it became very important, as is evident in the architectural elements and numerous votive offerings, the temple reached its maximum splendour during the Roman era: a first Augustan period and a second (3rd century AD) period, during which time the inscription to Emperor Caracalla was made on the pediment.

Of the steps, three levels (partially reconstructed) still remain, although there were numerous others originally; the sacrificial altar was on the fourth level, based on Roman canons. The temple is divided into pronaos with four columns - with a smooth shaft, Attican bases and Ionic capitals - on the façade and on one of the sides; an 11-metre deep cells and a floor covered with white mosaic; and an adyton with two almost-square rooms equipped with cisterns.

The temple was created (9th century BC) as a Nuragic sanctuary. Several shaft tombs bear witness to the use of the area as a burial place. In one of them, a bronze statue was recovered and portrayed a nude male divinity holding a spear with his left hand, probably the Sardus Pater or the Punic god, Sid, warrior and hunter, a representation of the local divinity Babai.