Not a lot is known about the Steinenschloss castle history and even the name Steinenschloss exists only since circa 1900. The castle was probably built in approximately 1100. At the end of the 12th century Steinenschloss was destroyed and never rebuilt. The ruin served as building materials for the construction of a railway line and the train station of North-Pirmasens. Only recently efforts are being made to excavate the castle.
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.