Tarifa Castle was built in 960 by the Abd-ar-Rahman III, Caliph of Córdoba. When Tarifa was taken over by the king of Castile, Sancho IV in 1292, the castle was handed over to Alonso Pérez de Guzmán for its defense. Pérez de Guzmán get the nickname of 'Good' (el Bueno) by refusing to hand over the castle in 1296 to the besieging forces of the Infante Don Juan, the rebellious brother of the king Sancho, and the Marinids, in exchange for the life of his son.
Due to the castle's irregular oblong shape, some believe it was built on the remains of a Roman fort. To the east, two high towers protect the castle - one is called Torre de Guzman El Bueno; the order for the Moors to kill Guzman's son was given from here. Outside the castle you can see a statue of the king who first reconquered the town from the Moors in 1292, Sancho IV. There's a statue of Guzman himself just over the road on the Alameda.
Recently refurbished, the castle is open to visitors. The coast and mountains of Morocco are visible from its towers.
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.