Lamego Castle is a 12th century military construction that's located on a hill that overlooks the city, with great views of the Tower of Homage. You can visit the primitive walls by Porta do Fogo, or the Puerta del Sol, thus defining the structure of the wall that was closed when I visited. Asking a neighbor told us that opened Sunday morning. So there are some pictures taken right at the top of the hill and at the bottom of the city. Regarding the visitation schedule seems to open on Sundays from 10 to 12 hours per week from 14 to 16 hours.