Ключевые слова: ancient, archipelago, architecture, army, artillery, battery, building, cannon, coast, coastal, coastline, defence, defense, defensive, entrance, finland, fort, fort island, fortification, fortress, gate, gun, helsinki, historic, island, king, kustaanmiekka, landscape, military, mortal, mortar, old, outdoor, protection, russian, russojapanese war, scandinavia, siege, siege mortar, stone, stones, suomenlinna, suomi, sveaborg, travel, war, water, weapon, world war i,