during the middle ages the church of san siro in mairengo (first mentioned in 1171) was the baptistery of the "vicinanza". the village church of s. andrea in faido was first mentioned in the 13th century. following the fire of 1331, it was rebuilt and in 1579 was elevated to a parish church. it was expanded in 1830. the chapel of st. bernardino of siena from 1459 was under the patronage of the varesi family, which also owned a six-story tower house. in 1607, a capuchin monastery was founded, which was for a long time the seat of the seminary of the capuchins and cultural center. the monastery school was open to boys from the valley. the monastery complex includes the church of san francesco, built in 1608, and rebuilt in 1785/86.