Schnaditz Castle was probably built around 1237 into a marshland area. The longest time (1463–1655) the family members of the von Zaschnitz lived there, also related to the Steuben family through marriage. Tietzen von Zaschnitz undertook numerous renovations and new buildings at the castle in the mid-15th century..
Immediately after the purchase in 1655, Ludwig von Wuthenau carried out extensive construction work on the castle, which had run down during the Thirty Years' War. Today it is in dilapidated state.
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.