Linde Church is a homogeneous Romanesque church. Construction of the presently visible church started in the late 12th century and was finished in the early 13th century. A single, large Gothic window was inserted in the eastern wall in the 14th century.
The external nave and choir portals are both decorated with Romanesque sculptures. Inside, the church is decorated with frescos. On the northern wall is a set of paintings depicting the Passion of Christ, dating from the 15th century. On the western wall is another set, also from the 15th century, depicting women being harassed by devils. Among the church furnishings, the altarpiece from 1521 is especially noteworthy. It depicts God the Father with Christ, with Saint Giles and Saint Olaf on each side of them. Additionally, the doors of the altarpiece contain sculptures of the apostles, Saint Canute, Saint Eric and Saint Bridget. The church furthermore contains a copy of a triumphal cross today kept in the Swedish History Museum. The original dates from the end of the 12th century. The church furthermore rather unusually contains two baptismal fonts. Both are probably from the 12th century, and one may be a work by the stonemason Hegvald.
South-west of the church lie the ruins of a medieval house, probably the former parsonage.
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.