Le Destroit is a ruined medieval fortified road station, built by the Templars of the Crusader Kingdom of Jerusalem in the early 12th century, located on the Mediterranean shore near a site where they later built the Chateau Pelerin castle, today close to the modern town of Atlit, Israel.
The coastal road near Atlit ran through a narrow passage in the rock, making it an ideal location for robbers to ambush pilgrims and other travelers. In 1103, Baldwin I of Jerusalem was wounded by robbers in the area. The tower fortress, which was situated on a ridge above the pass on the east side of the peninsula at Atlit, was built to protect these travelers.
The army led by King Richard I of England camped at the fortress following the recapture of Acre in 1191. However, when the larger Castrum Perigrinorum was completed in 1218, Le Destroit was dismantled by the Crusaders so that it couldn't be used by the Muslim enemy as a staging ground for an attack on the main castle. Denys Pringle indicates 1220 as the year Destroit was destroyed.
Today the podium-shaped tower base with rock-cut cisterns, the rock-cut yard containing the stables, as well as the moat can still be seen. The remains are cut into the living rock,[6] an aeolian quartz sandstone known in the region as kurkar.
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.