Kuressaare Episcopal Castle, also known as Kuressaare Castle, is one of the most interesting and best-preserved fortresses in Estonia. The castle has become one of the most remarkable buildings in Northern Europe built during the 14th–19th century. There is a history museum which tells stories of the distant past and recent history of Saaremaa and the locals through permanent exhibitions and travelling exhibitions. There are also activities for both children and adults – from treasure hunts to archery!
https://www.visitestonia.com/en/kuressaare-episcopal-castle