Monterrei Castle is located a high part of the valley, near the town of Verín. It was built in the 12th century by Alfonso Henríquez. It was extremely important in the epoch of Peter the Cruel. In the 16th century it was used by Philip the Handsome for a meeting with Cardinal Cisneros. It was built from stone with evenly dressed ashlars. The most notable exterior features are the two towers: the Ladies Tower and the Keep The Keep was built by Sancho Sánchez de Ulloa in 1482. The castle is now a Parador hotel.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.