With 18 rooms, one of its underground burial sites is among the most extensive in the Mediterranean. The Pre-Nuragic necropolis of Sant'Andrea Priu is located on a plain less than ten kilometres from Bonorva and 500 metres from the rural church of Santa Lucia. In the vicinity, there is also the spring of Lumarzu and the Nuraghi Puttu de Inza and Monte Donna. The burial complex is made up of twenty Domus de Janas dating back to the Neo-Eneolithic age (4th-3rd millennium BC), dug out of the wall and on the plain of a trachyte outcrop 10 metres high and 180 metres long. Inside them, architectural residential details have been reproduced to recreate environments similar to the house of the deceased person.