Hamina fortress is a very rare circle fort, representing the Renaissance ideal city embodied by Palmanova city in Italy. It was built after Great Northern War to the ruins of Vehkalahti town.
After Treaty of Nystadt border between Sweden and Russia was moved to Kymeenlakso area in Finland. The construction of the fortress started began by Swedish general Axel von Löwen in 1720s. Protected by six bastions of the fortress the garrison was responsible for defending the city and the coastal road. When next war began in 1741 Hamina fortress was still uncomplete. It was conquered by Russian forces and in new peace treaty fortress left to the Russia side of border.
Russians continued fortress construction in the command of general Aleksander Suvorov. It was part of the South-Eastern Finland fortification system, which was implemented to defence St. Petersburg against western enemies. In the beginning of the 19th century Hamina fortress was outdated and it was reconstructed by the Dutch general Jan Pieter van Suchtelen. When Russia conquered Finland in the Finnish war in 1808-1809 fortress lost its military status. It was abandoded in the 1830s and tsar Nikolai I gave it as the property of Hamina city. During the Crimean war in 1853-1856 fortress reinforced again to fight against the British and French fleet.
Restoration was started in 1957. Much of the fortress remains to this day, and it is used as a venue for different events. Parts of the fortress are still in military use, as the Finnish Reserve Officer School is located in the fortress.
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.