The construction of the Château de Châteaurenard was started in 1170 by Seigneur Reynardus and the castle was also named after him. The castle was modified and enlarged in the 12th and 15th centuries. In 1596 Henry IV of France ordered to demolish the castle. The ruins were damaged more in 1790 during the French Revolution. The restoration was made in the 20th century. Today the castle hosts a museum of local history.
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.