Ravlunda church was built around 1200. It is typical Scanian in its design with the east apse, cows, nave and tower. Brick arches and vaults were filled with mural paintings in the 1400s, maybe by the Vittskövle Master. The church porch and tower were probably built also in the 1400s. The expansion to the north is considered to come from the 1600s. The altar dates from 1592 and the pulpit from 1609.
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.