The Notre Dame Church Collegiate is considered one of the most beautiful examples of medieval architecture in France. Built between the 11th and 16th century, the collegiate contains different architectural styles. Where the altar and the transept are Romanesque style, the rest of the building was rebuilt in three different Gothic (namely Early, Flamboyant and Perpendicular Gothic) styles. The organs date back to the beginning of the 17th century and which was restored in 1979. Some magnificent abstract-style stained glass windows were inserted in the 1970’s to replace those destroyed during World War II.
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.