Hagenskov Castle lies in the countryside a few kilometres to the east of Assens. It is a grade A listed building protected by law from substantial alteration. It was built in 1775 in a classical style by the design of architect G. E. Rosenborg. There had been a castle on this site for many centuries and remains of the medieval castle’s dungeons. In the 13th century a dispute with the King led to an archbishop being imprisoned here. The castle is visible from a public road, which leads right through the castle, but otherwise there is no public access to the castle.
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Goryōkaku (五稜郭) (literally, 'five-point fort') is a star fort in the Japanese city of Hakodate on the island of Hokkaido. The fortress was completed in 1866. It was the main fortress of the short-lived Republic of Ezo.
Goryōkaku was designed in 1855 by Takeda Ayasaburō and Jules Brunet. Their plans was based on the work of the French architect Vauban. The fortress was completed in 1866, two years before the collapse of the Tokugawa Shogunate. It is shaped like a five-pointed star. This allowed for greater numbers of gun emplacements on its walls than a traditional Japanese fortress, and reduced the number of blind spots where a cannon could not fire.
The fort was built by the Tokugawa shogunate to protect the Tsugaru Strait against a possible invasion by the Meiji government.
Goryōkaku is famous as the site of the last battle of the Boshin War.