Macenas castle or watchtower is an 18th century military structure built to keep watch the coast. In 1849 it was occupied by the carabineros and after the war arrived the Civil Guard and was built an access to the castle. It was restored in the 1990’s.
On its southern side there is a dirt track which leads to the La Torre del Perulico, or Torre del Peñon tower, built during the Nasrid period (13th-15th centuries). This tower was part of a defensive system along the Mediterranean coast. The rock, the tower and the natural arch form a uniquely beautiful whole.
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.