The Sant Antoni Castle is located in the Spanish village of Fornells, in the municipality of Es Mercadal. It was built in the 17th century in the local harbour and due to this building, the town was born.
Only some ruins are left from the structure, as it was dismantled by the Spanish after the British domination, just like St. Philip's Castle. Not far from there, there is the Fornells Tower, a defensive tower whose objective was protecting the castle from enemy attacks.
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.