Burg Pyrmont was built in the late 12th century by Kuno von Schönburg. It was first time mentioned in document dating from 1225. Waldbott Bassenheim family restored the castle in 1712, but it was partially demolished during the French occupation in the tide of 18th and 19th centuries. The last restoration was made in 1912. Today Pyrmont castle is open to the public.
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.