The Venetian Castle was built during the 15th century in Split. Built just south-west of the Diocletian's Palace along the shoreline, the castle had an irregular pentagonal shape with three towers facing north and overlooking the city. The decision to build the castle was made in 1424, however, it wasn't until 1441 that it was actually built on the grounds of a demolished monastery. By the early 16th century, the castle was in poor condition and it wasn't until the first half of the 17th century that work on improving it began.
By the early 19th century, the castle had lost its defensive purpose and the southern walls were demolished between 1806 and 1807 on the orders of Auguste de Marmont during the Napoleonic Wars. Presently, what remains of the castle is the large central tower and the smaller eastern tower with the wall connecting them, both located on the Radić Brothers Square (Trg braće Radić).
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.