From the original Château de Loubens castle remains today the main 15th and 16th century building and three towers which still bear their original Renaissance design. The north facade, facing the park, is framed by two defensive round towers. The high west walls plunge into a pond, remains of the original moat. On the south side, the castle sunny terrace overlooks the surrounding countryside. An hexagonal tower embeded into the Renaissance main building brings rhythm to the facade.
The 10 acres around the castle have been redesigned using to the best the remains of its previous successive settings. The most ancient elements date from the Renaissance period. Among them, some remarkable box trees and 500 years old green oaks. A little parterre in classical French style on the north side leads to 4 squares of wild prairies framing a large alley planted with limetrees in 1825. Inside the grove, a stream, a bassin and a fountain bring animation and coolness into the woods.
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.