Mosteiro de São Bento de Arnóia / Mosteiro de São João de Arnóia

Benedictine monastery consisting of a longitudinal church, a single nave, and a quadrangular chancel. Among the church's decorative elements, highlights include a sculpted tympanum depicting Agnus Dei and a figure of Saint Michael attacking a serpent. The monastery still preserves the cell where the Bishop of Grão-Pará lived following his exile by the Marquis of Pombal.