Right in the middle of the island is a place that exudes spirituality and provides food for thought. You will notice it when you visit the most extraordinary grouping of menhir in all of the Mediterranean basin. It is the archaeological park of Biru ‘e Concas, which literally means ‘trail of the heads’, commonly referred to as the Sardinian Stonehenge. Located a few kilometers from Sorgono, the town is nestled in the woods of the Mandrolisai region, the westernmost point of the Barbagia. Inside you will see two hundred huge sculpted boulders that have been worn down to an oval shape. The oldest, proto-anthropomorphic, date to the late Neolithic (3500-2800 BC), while the more elaborate stylized ones, anthropomorphic, date to the Eneolithic (2700-1700 BC). In essence, the megalithic monuments are elongated sacred rocks that were once embedded (perdas fittas) and served as phallic symbols for fertility to evoke the Mother Goddess, a primordial Nuragic divinity that somehow echoes the mythical and heroic figures of the forefathers.