The Château de Dreistein is a ruined castle in the commune of Ottrott. It is, in fact, three separate castles built on rocky promontories, hence the name drei Stein, 'three stones' in medieval German. It was built in the 13th or 14th centuries and was separated into two sections later. In the 17th century it was destroyed.
The castle is sited on the massif of Mont Sainte-Odile, to the west of the abbey. It overlooks the valley of the Ehn which it controls along with the castles of Koepfel, Rathsamhausen and Lutzelbourg and the Château du Hagelschloss. As with the latter, it is close to the Pagan Wall of Mont Sainte-Odile.
In common with all the neighbouring castles of its time, the castles at Dreistein are constructed from pink sandstone from the Vosges. The remnants of the two castles are separated by a ditch. The western castle is flanked by a half open staircase tower.
Access to Dreistein is only possible on foot, following paths laid out by the Vosges Club.
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.