The existence of Saarbrücken was first documented in 999 under the name 'Castellum Sarabrucca'. In the 17th century the castle was rebuilt in the style of the Renaissance, but later destroyed and now only the cellars of this construction remain. In the 18th century Prince Wilhelm Heinrich had his architect Stengel build a new Baroque residence on the same site. Since then the castle has suffered various bouts of destruction and was partially burnt down and reconstructed before being thoroughly and magnificently renovated in 1989. The architect Gottfried Böhm designed a state-of-the-art central block of steel and glass. The castle is now both an administrative centre and a venue for cultural events, conferences and festivities.
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.