Hohenheim, Germany
1782
Koblenz, Germany
1777-1793
Mainz, Germany
1627
Potsdam, Germany
1829-1840
Potsdam, Germany
1847-1863
Stuttgart, Germany
1764-1769
Potsdam, Germany
1826-1829
Dresden, Germany
1854
Essen, Germany
1870-1873
Dresden, Germany
1715
Potsdam, Germany
1835-1849
Kreuth, Germany
1913-1973
Ludwigslust, Germany
1768-1776
Munich, Germany
1734-1739
Wannsee, Germany
1826
Ansbach, Germany
1705
Aschaffenburg, Germany
1840-1848
Weimar, Germany
1776
Binz, Germany
1838-1846
Oberhausen, Germany
1804-1820
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.