Tarant noble family founded Tarantsberg castle in 1217, later named as Dorenberch and Dornsberg. The St. Ursula chapel was probably built between 1270 and 1280. From 1699 the castle has been owned by the counts of Mohr, Giovanelli and Fuhcs families.
After the end of WWII the building was damaged, but in 1964 the Gottschall family from Munich purchased the castle complex and had it restored with the utmost effort. Still today this castle is in possession of this family and cannot be visited.
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.