Appenzell castle was built in 1563 as an elegant mansion the doctor Antoni Löw. Antoni was an enthusiastic supporter of the Protestant Reformation in Appenzell. In 1584 he was captured, judged and sentenced to death by the local Catholics for slandering a priest. After his death the castle was taken by the city and given to the Franciscans. They remained in the castle for almost a century, until 1682 when they moved into the newly completed St. Mary of the Angels. When the Franciscans moved out, the castle was sold to Antoni Speck who owned it until his death in 1708. It then passed to Johann Baptist Fortunat and then into the possession of the Sutter family.
On 15 February 1875 Doctor Anton Alfred Sutter became the sole owner of the castle. He established his practice in the castle, leading to it being known as the 'Doctor's House'. Today the castle remains the property of the Sutter family.
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.