Auxerre Cathedral is known for its expansive stained glass windows. Most of the Burgundian Gothic cathedral was built between 1215 and 1233 above an 11th-century crypt. Construction continued until the 1540s when the cupola, in Renaissance style that takes the place of one pinnacle on the completed tower, was completed. The first building campaign erected the chevet at the liturgical east end, followed later in the century by a new façade and the bases of new towers at the west end (still linked to the apse end by the nave of the old cathedral). Construction on the nave and transepts proceeded slowly throughout the 14th and 15th centuries.
The narrative sculptural program of the portals on the west end are noted for their extent and variety. Guillaume de Seignelay, bishop of Auxerre decided to undertake the reconstruction of the older edifice about 1215, to which he set an example by contributing heavily and consistently from his own resources, and even bequeathed funds after his transfer to the see of Paris in 1220. The chevet was completed by his successor, Henri de Villeneuve (1220–34).
Stimulus was provided about 1270 by Jean de Châlons-Rochefort, who had recently become Count of Auxerre, having supported the Duke of Burgundy against his own brother, by marrying Alix, the heiress of Auxerre. He was the largest fief-holder in the Duchy and commemorated the new status of his fief of Auxerre by enriching the front of its chief ornament, the cathedral, whose Carolingian nave had been erected by his ancestor Hugh de Châlons, 10th-century bishop of Auxerre. Its program of sculpture was carried through long after his death and completed in the early 15th century.
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.