Château du Kagenfels (also known as Kaguenfels or Kagenburg) is a ruined castle situated in the Forest of Obernai, in the commune of Ottrott. The castle was constructed in 1262 by Albrecht von Kage, Ministerialis of the Bishop of Strasbourg. The castle passed successively to the nobles of Hohenstein, then to Utenheim and Ramstein, who sold it in 1559 to Lucas Wischbech who repaired and enlarged it. In 1563, the town of Obernai bought it. It was destroyed during the Thirty Years War and is recorded as ruins in 1664.
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.