The Château de Bilstein is a castle ruin in the municipality of Riquewihr. The origin of the castle dates from the 12th century, with additional building work done in the 14th century. The castle was destroyed in 1636.
The ruin is near to that of another castle ruin, Château de Reichenstein, both popular hiking destinations. The ruin of Chateau de Bilstein lies just off GR 5.
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.