The Monastery of St. Peter of Eagles, located in the Town of Granjinha, is a twelfth-century Romanesque building, erected a small platform Tavora Valley. One of the most interesting aspects is the existence of several figures of animals, especially snakes. In front is a decorated arch, supported by carved columns and capitals as well. The small door to the north shows an Agnus Dei. This Monastery is classified as a cultural heritage building.