Mazzè Castle castle belonged to the Valperga family for seven centuries, until its extinction in 1840. Originally built to the site of ancient Roman fort, it has been renovated and modified several times across the centuries. In particular, it is important to mention the renovation works performed under the direction of architect Velati Bellini in the 19th century, which gave the castle its current appearance.
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.