San Gaudenzio is a Baroque architecture church in the town of Ivrea. Tradition holds that the church is located on a site where St Gaudentius in the year 348 had lain down on a rock overnight, and his body miraculously left an imprint on the rock. The church was constructed between 1716 and 1724 at the site of a former castle. The bell tower was built in 1742. The architect remains unknown, although the rococo design of the facade with a convex front and an oval tympanum appears influenced by Bernardo Antonio Vittone. Some attribute the design to Luigi Andrea Guibert, active in Ivrea between 1714 and 1719. The interior contains frescoes (1738–1739) by Luca Rossetti.
The church has a number of paintings depicting the scenes in the Life of St Gaudentius, including a Glory of the Saint in the apse, behind the main altar. One is a procession leaving the chiesa di San Gaudenzio with the city in the background.
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.