St. James' Church or Skt. Ibs Kirke is a travertine church from around 1100. In 1808 it was transformed into a field hospital for Spanish soldiers. In 1816 the church and the graveyard were sold to a local merchant and used as warehouse until 1884. The porch, tower and chancel were demolished, however, the church was restored in 1922. Today, only the aisle is left. The famous Danish painter L.A. Ring is burried in the churchyard which is still used.
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.