St. Rochus Cemetery (Rochusfriedhof) was created in late 1510s to bury the victims of the plague epidemic of 1517-18. To avoid spreading the disease, city authorities decided to build the cemetery at some distance from the city, so St. Rochus is located outside the old city wall. The cemetery was finally consecrated on 21 March 1519. St. Rochus Chapel was built in 1520–21. The architect was Hans Beheim the Elder, who also built a chapel for Johannisfriedhof, another old Nuremberg cemetery.
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.