Most beautiful castles in Finland
Finland has not too many castles, but the existing are really well-preserved hidden gems. Dating from the dusk of Middle Ages to the Age of Enlightenment, you can see here the most magnificent castles and fortresses worth of visit!

Suomenlinna
Suomenlinna ("Sveaborg", "Viapori") sea fortress is a UNESCO World Heritage Site and one of Finland’s most popular tourist attractions. The construction of the fortress started by the king of Sweden in 1748 as protection against Russian expansionism.
Read more about Suomenlinna
Turku Castle
Turku castle is a national monument and one the most remarkable medieval castles in Finland. It's also one of the largest existing castles in Scandinavia. A history of Turku castle begins from the year 1280. The Swedish conquerors of Finland intended it originally as a military fortress.During 15th and 16th centuries its defences were strengthened and living quarters were added.
Read more about Turku Castle
Häme Castle
The medieval castle of Häme is located on the coast of lake Vanajavesi. It was originally located on an island.The castle's age is disputed. Traditionally the construction of the castle has been connected to the legendary Second Swedish Crusade which would date the castle in the mid-13th century.
Read more about Häme Castle
Olavinlinna
Olavinlinna ("St. Olaf's Castle" or "Olofsborg") is one of the greatest medieval castles in Finland. It was built to secure the eastern border of the Kingdom of Sweden-Finland. The construction started in 1475 by Erik Axelsson Tott. Russians disturbed construction work sequently, because the castle was sited in Savonia to the Russian side of the border established by the Treaty of Nöteborg.
Read more about Olavinlinna
Raasepori Castle
The Raseborg or Raasepori Castle is one the five remaining medieval castles in Finland. It was founded by Bo Jonsson Grip and it is thought that the castle's first phase was completed sometime between 1373 and 1378. The first written data about the castle is from 1378. Its main purpose was to protect Sweden's interests in southern Finland against the Hanseatic city of Tallinn.
Read more about Raasepori Castle
Kuusisto Castle
Kuusisto Castle was a medieval episcopal castle built in the beginning of the 14th century. It was the main residence of Finnish Catholic bishops until 1522, when the last bishop Arvid Kurki drowned when fleeing from Danish soldiers.Kuusisto heyday was in the in the beginning of the 15th century, when bishop Maunu Tawast spent lot of time and money to enlarge the castle.
Read more about Kuusisto Castle
Kastelholma Castle
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms.
Read more about Kastelholma Castle
Kajaani Castle
The Kajaani Castle was built on the Ämmäkoski island of the Kajaani river in the 17th century. The castle functioned as a administrative centre, a prison, and a military strongpoint.
Read more about Kajaani Castle
Svartholma Fortress
Svartholma sea fortress was built by Swedish in the 18th century. Svartholma and near Loviisa land fortress were designated to defence strategic road from Turku tu Viborg and Sweden-Finland's eastern border against Russians. Svartholma construction started in 1748 and it was mostly completed in the 1760's.
Read more about Svartholma Fortress