The church of Santa Cruz de Arabaldo was originally a small monastery that depended on the important Cistercian community of Oseira: its documents date it as early as the 12th century. It consists of a single nave and rectangular apse.
Its façade is Baroque, but the rest of the stonework is Romanesque. Thus, on the southern façade we find a mysterious inscription with Romanesque characters and on the cornice some corbels with geometric decoration. On the northern façade, on the other hand, the corbels have vegetal decoration, and a checkered semicircular gate appears, supported by vegetal capitals and two bovines on the brackets.
The rectangular apse is lower than the central nave. Both end in a cornice supported by corbels: the southern ones have geometric shapes and a monstrous animal, while on the northern ones there is a person drinking from a barrel, an animal that seems to be looking at us and a bird clutching an object. The head has a semicircular arched window with checkered patteern supported by capitals (some decorated with birds) on smooth columns. The apse is finished off in an Agnus Dei with a ram whose cross is missing
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.