Reifenstein castle was probably built in the 12th century by the Reifenstein family, a branch of Liechtenstein family. In the 13th and 14th century extensions were completed. 1521, the castle was sold to Sebald Pögl from Thörl and rebuilt in the Renaissance style. 1698 the castle came into the possession of the family Schwarzenberg who still owns Reifenstein lands. The castle was inhabited until 1809. It was damaged during the Napoleon Wars and left to decay.
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.