The church of San Mamés in Trefacio Monument · Trefacio, Sanabria, Zamora Image of Trefacio, not of the place itself. It presides over the village square and stands out for its façade, for a singular doorway and for the bell tower; on the outskirts, a small hermitage today houses the cemetery of this municipality within the natural park. Photo: M.Peinado from Alcalá de Henares, España (CC BY 2.0) What to see and do in Trefacio