The non-profit cultural association Hisn al-Giran was founded in Calascibetta in July 2011, out of a shared desire to promote and enhance the Calascibetta area through excursions and cultural events. Monte Altesina is the navel of the island, chosen by the Arabs as the geographical centre from which to command Sicily. Walking along its trails, you discover a route of great charm, along which you come upon tombs carved into the rock, the ruins of an ancient monastery, a Siculo-Greek village and an inscription in Arabic, for a historical journey from prehistory to the Middle Ages.