Grimburg Castle was built around 1190 by the Archbishops of Trier to serve them as a regional castle. It was the seat of office for almost 40 Hochwald communities and received a town charter in the 14th century. The castle was taken in 1522 by Franz von Sickingen.
In 1978 the castle was woken from a long slumber and partly restored in the following years. The intensive efforts of the “Friends of Grimburg Castle“ have made it possible to give the numerous visitors of today a rough picture of a medieval castle site. Viewing is possible all year round and the admission is free.
The castle complex extends for a length of about 300 meters and a width of around 90 meters. Thus, the Grimburg was, if not the most significant, at least the most spacious among the former Kurtrier state castles. It comprises a outer bailey, a rectangular keep, a hall (palas), and a chapel. The lower church served the residents of the outer bailey for worship, while the upper church, functioning as a gallery with its own entrance, remained reserved for the archbishop and his officials.
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.