The oldest part of the Etelhem Church is a tower, built in the beginning of 1200s. The nave and choir were built around 1300 and sacristy added in 1600s. The interior is decorated with mural paintings made in the 1400s. The well-preserved stained glass in choir window dates from the 1300s. The font was made of sandstone in the late 1100s and wooden crucifix was carved in 1300s. The pulpit dates from 1648 and altar from 1690.
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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.