Liebenstein Castle was probably built in the 13th century as well as near Sterrenberg castle. Both were owned by feodal lords of Bolanden (later Sponheim-Dannenfels). The gate tower was added 1363 and tower in 1380 and the castle was enlarged in the 15th century. However, already in 1529 it was abandoned and left to decay. The major restoration took place in 1977 and today Liebenstein is a hotel and restaurant.
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.