Châteaux d'Aujac was built to symbolise the combined powers of the Anduze family and the Bishop Cheylard of Uzès, who lived there from the 12th century. From the square to the round tower, the Chateau and its village illustrate the development of castle construction from the Middle Ages to the Renaissance. Still inhabited to this day, this magnificent architectural ensemble is a listed Historic Monument and represents a rare example of such conservation.
References:Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British and French fleet attacked against it during the Crimean War in 1854. After a week of fighting the British stormed the remaining fort. Anglo-French forces destroyed it totally after battle. In the Treaty of Paris 1856, the entire Åland Islands were demilitarized, which is a status that has been preserved until this day.
Nowadays there are some ruins left and fortress area is open for visitors.