Saissac, France
11th century
Bonrepos-Riquet, France
1651
Gissac, France
15th century
Saint-Alban-sur-Limagnole, France
12th century
Brousse-le-Château, France
10th century
Saint-Izaire, France
14th century
Puivert, France
12th century
Sainte-Enimie, France
12th century
Laréole, France
1579
Canet-en-Roussillon, France
11th century
Termes, France
12th century
Saint-Sulpice-la-Pointe, France
c. 1240
Entraygues-sur-Truyère, France
1278-1290
Rivière-sur-Tarn, France
12th century
Saint-Félix-Lauragais, France
13th century
Castelnau-de-Lévis, France
13th century
Tuchan, France
12th century
Mauvezin, France
1380
Mazamet, France
11th century
Pibrac, France
1540
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.