Château de Cornusson was originally a medieval castle first mentioned in 1157. It was rebuilt in the 16th-17th centuries by La Valette-Parisot family. It saw some action during the Wars of Religion and held out several times against Protestant forces.
The Vignes family from Puylaroque acquired the château by marriage in the late 17th century. Apparently, it was pillaged during the Revolution and left in a terrible state. After that, it passed through various hands and sank into the obscurity of rural French life.
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.