Kraków, Poland
9th century AD
Warsaw, Poland
14th century
Stare Miasto, Poland
Medieval
Kraków, Poland
1498
Malbork, Poland
1274-1406
Lublin, Poland
14th century
Lublin, Poland
13th century
Czocha, Poland
1241
Gdańsk, Poland
1571-1576
Poznań, Poland
1249
Gdańsk, Poland
c. 1400
Walbrzych, Poland
1288-1292
Poznań, Poland
1905-1910
Szczecin, Poland
1346
Wieliczka, Poland
13th century
Olsztyn, Poland
1346-1353
Moszna, Poland
1900
Łańcut, Poland
1629-1642
Warsaw, Poland
1624
Cieszyn, Poland
14th century
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.