The Oldřich Oak, also known as the Prince Oldřich Oak, is a Pedunculate Oak (Quercus robur) tree located in the market town of Peruc. It is estimated to be about 1,000 years old. The tree has a height of 30 m and a trunk circumference of 810 cm.
The tree derives its name from a legend, set in the 11th century, involving Oldřich of Bohemia and Božena, the mother of his only son. According to the legend, Oldřich set out on a hunt and travelled to Peruc. There, he spied a beautiful peasant girl, Božena, by a well (known today as Božena's spring) and was immediately entranced by her. Oldřich abandoned his hunt and took Božena back to Prague, and she eventually gave birth to his son Bretislaus. In the legend, Oldřich's first meeting with Božena took place in sight of the Oldřich Oak.
The Oldřich Oak is mentioned in the Chronicle of Dalimil.
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.