Branzoll Castle was built around the year 1250 by the Lords of Sabiona. Between 1465 and 1671, it was the site of the Prince-Bishop's court judge. In 1671, it was destroyed in a fire. In 1895, reconstruction began. While the castle-keep still contains parts of the former fortress, the residential tract is completely new. The view from the church square of the buildings on both sides and the castle looming over it all is among the architecturally most breathtaking sights the city has to offer.
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.