Schalun Castle, also known colloquially as Wildschloss, was constructed probably during the second half of the 12th century or around the turn of the 12th century. The first written record about the castle comes from 1237. In it, it was also first referred to by name, as 'Schalun'. Archeological digs made in recent decades have revealed only small amounts of artefacts from the medieval and early modern period, suggesting that the castle might have been cleared and burned down at a later point in its history. In the 18th century, the castle came into the possession of the then Prince Regnant of Liechtenstein. The ownership of the castle ruin was handed over to the Municipality of Vaduz in 1933. Today, the best preserved parts of the castle are its grand hall and the remaining section of its keep.
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.