Panteón de Marinos Ilustres (Pantheon of Distinguished Sailors) began construction in 1786, was inaugurated without a roof in 1870, and covered in 1948. Here rest the mortal remains of many Spanish sailors.
From the exterior of the Pantheon of Illustrious Mariños, the sober and imposing doorway in neoclassical style stands out. Inside, the elliptical-shaped vestibule particularly stands out, as well as the church, with three naves and a dome over the transept. The most important feature inside are the tombs of sailors situated in the sections of the side aisles: Gravina, Álava, Valdés, etc.
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.