Vårfrukyrkan (Our Lady’s Church) was built in the 12th century in the same style as Sigtuna and Old Uppsala churches. The star vaulting and enlargement were completed in the 15th century. The wooden tower was added in 1839. There are remains medieval mural paintings as well as newer painted by C. W. Petterson in 1904.
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.