This monastic complex is impressive. Visitors will be immediately struck by the simple lines of the Claustro do Silencio (cloister); built in the 14C, it has thin twin columns that elegantly support three arches, on top of which is a rose window. Visits to see the chapter house, in the cloister's east gallery, the monks' dormitory, an immense 60m-long Gothic hall, and the refectory, an ogival vaulted hall, are a must.