the parish church of s. siro is first mentioned in 1170, but probably dates back to the 11th century. it is one of the oldest churches in the levantina valley. it was renovated in the 16th century and, later, the church tower was rebuilt in 1574-75. the new church had two naves and a rectangular choir. the facade retains some of the elements of the earlier church. inside, there is a side altar from a german workshop that was built between 1510-20. the walls also feature a mural from 1558 by gerolamo gorla da milano and paintings from the 17th century.