Blasius Chapel in Bergweiler was first mentioned in a document among the possessions of Tholey Monastery in 1246. The main day of pilgrimage was the annual St. Mark’s day, on which a procession took place from Tholey to the chapel followed by a market. Inside, the chapel has three baroque altars in white, blue and gold. The figure of Saint Blasius is depicted on the high altar, with Saint Mark and Saint Wendelin depicted on the side altars and above them the coat of arms of Tholey Abbey and the abbot Dr. Petrus Bonne.
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.