Schloss Wittringen, also known as Haus Wittringen, is a moated castle in the North Rhine-Westphalian town of Gladbeck on the south-western edge of the Wittringen leisure centre. Its roots go back to the 13th century.
Once a knight's seat of the Vest Recklinghausen, it has seen many different owners over the course of its history, including the von Brabeck, von Oeffte and von Vittinghoff-Schell families. Today, the estate is owned by the town and is home to a museum and a restaurant. It has been a listed building since 1984
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.