San Lorenzo Castle is surrounded by ancient external walls, dating back to the 9th century. It is protected by a moat. The Gothic style castle has been restored several times during centuries.
The castle is visible from very far away, even if it is not on a hill, thanks to its six towers and wide crenellations, which were used by the defenders to protect themselves. A small avenue of 150 meters, which enters in the northern part of the park, leads the visitor to the façade of the big building. The central tower has painted on it the symbol of the castle’s owners.
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.