In the village of Sant'Agata d'Ugno, in the territory of Palombaro, there is an interesting example of rocky church, in part obtained by adapting a cave as a place of worship and in part building the apse in local stone. According to tradition, in ancient times existed in the same locality a pagan shrine dedicated to the worship of the goddess Bona, a deity who protected the fertility. On the ruins of this temple would be built between the eleventh and twelfth century a church dedicated to St. Michele Arcangelo. It is correct to remember that the cult of this saint in the Middle Ages was almost exclusively practiced in the caves: the best known example today is the underground sanctuary of San Michele in Monte Sant'Angelo sul Gargano, a place of pilgrimage for many centuries . Just using the traditional transhumance of flocks and shepherds, the worship from the Puglia also spread in Abruzzo. The most interesting part of the Church of Palombaro, now reduced to a few remnants, is the apse made of hewn stone. The building and decor are reminiscent of the Romanesque style and of motif present in the Church of San Liberatore a Maiella, near Serramonacesca. All around the perimeter of the apse runs a series of small arches made of limestone Maiella. The apse, at whose center there is a splayed lancet, protrudes from the rock in which it is embedded. Inside, carved into the rock itself, was arranged the small chapel of San Michele.