The unusual large church was made of stone and bricks around the year 1300. The sacristy originates maybe from the earlier church. The vaults were added in the 1400s and painted with frescoes around 1470 by so-called Tierp Master. The crucifix originates from the late 1200s and limestone font from the late 1400s. The Gustavian pulpit was inaugurated in 1781.
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.