Freudenburg Castle was built between 1330 and 1337 by John, King of Bohemia and Count of Luxembourg. As part of a castle protectorate between Trier and Luxembourg, it served to secure the road between the cities of Trier and Metz.
During the 15th century the castle fell into disrepair until it was bought by the St. Maximin's Abbey in 1589. They had the castle restored. In a dispute between the abbey and the Archbishop-Elector of Trier; Philipp Christoph von Sötern, the troops of the Archbishop took the castle in 1646 and destroyed it. It was never rebuilt.
Freudenburg Castle was built at the end of a rocky spur. It was separated from the village by a broad dry moat cut out of the rock. Originally a wooden bridge would have given access to the castle from the village. The castle plan follows the outline of the spur, giving it a triangular ground plan.
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.