The nature context of the “Olive Belt” is enhanced by a historic-artistic heritage of priceless value, which mixes together with the historic presence of olive tree cultivation, typical of Umbria. Assisi, Spello, Foligno, Trevi, Campello sul Clitunno, and Spoleto are the most important cultivation areas. But throughout the entire “Olive Belt” system, the landscape, art, and territory guarantee a stability of the integrity of the history and landscape.
Not just the Franciscan places or monastic retreats (with such magnificent examples as the Hermitage of the Carceri and the Hermitage of St. Anthony), but also the Benedictine Abbeys (San Masseo and San Benedetto in Assisi, San Silvestro in Spello, Sassovivo in Foligno, Santo Stefano and San Pietro in Trevi, and San Ponziano in Spoleto), and the countless Romanesque churches scattered along the medieval routes, form a unique whole which is an innate characteristic of the territorial organization.