Bruch water castle was built in the 14th century. From that time, the entrance side with the gatehouse, the five-story corner tower, and the round tower at the other end have survived. Originally, the castle was owned by the Lords of Bruch, then it was granted as a fiefdom to the Lords of Daun. It returned to the possession of Trier in 1539.
The complex is now privately owned. In 2023, a beer garden was opened in the courtyard of the castle.
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.