Vinné Castle is the ruin of a Gothic castle probably built in the second half of the 13th century to protect the road leading to Poland. During the war of the Hungarian King Matthias and the Polish monarch Casimir IV it was severely damaged in 1466. In the beginning of the 16th century the castle repaired and fortified but in 1594 it was again damaged by the imperial army. In the mid-17th century Vinne castle was left to decay. At the beginning of the 18th century during the uprising agains Habsburgs the castle was finally demolished. Since it is has been in ruins.
References: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.