Assisi Private Guided Tour: Exploring the Mystique of St. Francis. Known to pilgrims from all over the world, the Umbrian hilltown of Assisi located beneath the summit of Monte Subasio will enchant you with its maze of medieval streets and charming squares. Our Assisi guided tour will stop at the Basilica of St. Francis hosting the remains of the saint who founded the famous Franciscan order. With an expert city guide, learn the history behind Italy's most famous pilgrimage site