Louhisaari manor castle was built in the late medieval ages by the remarkable Fleming noble family. The present main building was completed in the 1650s and represents the rare palatial architecture in Finland. The grounds have an extensive English-style park, complete with paths. Louhisaari belonged to the Fleming family for over three hundred years. The lack of money forced them to sell the manor to the family of Mannerheim in 1791. Finland’s Marshall C.G.E. Mannerheim was born there in 1867.
The festive floor and the service floor are in 17th-century style and furnished to match. The middle floor, where the actual living quarters were, was modernised during the 18th and 19th centuries, and the rooms in this part of the castle reflect the interior-decoration styles of that time.
Government of Finland bought Louhisaari in 1961 and opened it to the public couple of years later.
Nowadays it’s open in summer time. Admission to the museum only in the company of a guide, tours in Finnish at half hourly intervals.
Towering 52 meters above the sea, Bengtskär lighthouse is the tallest one in Scandinavia. The building started in in 1905 after the shipwreck of S/S Helsingfors and was completed in 1906. The lighthouse was designed by architect Florentin Granholm. On December a special petrol lantern, designed and built in Paris, was brought to Bengtskär and installed atop the tower.
German fleet bombarded Bengstkär in the First World War in 1914. Since the Gulf of Finland was heavily mined, it was not until 1919 that the surrounding seas were declared safe for shipping, that the light was lit again.
After the war the military value of Bengtskär increased as part of the defence system of independent Finland. In Second World War (1941) Soviet Union made a suprise attack to island. After a bloody battle, the small Finnish garrison emerged victorious. Intermittent repairs to the facility continued during the post-war period.