The “Monumento Naturale di Corviano” is a lesser-known nature reserve that covers over 70 hectares and is located between the villages of Vitorchiano and Bomarzo, in northern Lazio. The site extends over a high volcanic plateau that is separated from the valley below by high cliffs, which served formidable defensive purposes over the centuries. Most of the archaeological remains that are visible today date back to the Middle Ages, however, several Etruscan altars and tombs are located in the valley below. These include the ruins of a castle whose walls…