Hammelburg, Germany
1726-1731
Bad Hönningen, Germany
1849-1858
Wermsdorf, Germany
1721
Vinsebeck, Germany
1720
Schloß Holte-Stukenbrock, Germany
1608-1616
Warstein, Germany
1714-1746
Ettersburg, Germany
1706
Flamersheim, Germany
17th century
Alfter, Germany
1721
Hamburg, Germany
1750
Rentweinsdorf, Germany
1751
Trier, Germany
1779
Oettingen in Bayern, Germany
1679-1687
Ellwangen (Jagst), Germany
1603-1608
Neuburg an der Donau, Germany
1530
Höchstädt, Germany
1589-1603
Munich, Germany
1715
Gaußig, Germany
c. 1700
Hörnitz, Germany
1651-1654
Bottrop, Germany
1766-1777
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.