Ключевые слова: ancient, archaeology, archeology, architecture, artillery, background, barrel, blue, brick, building, cannon, castle, clouds, culture, daugava, defense, equipment, europe, fortress, gun, heritage, historic, historical, history, iron, koknese, koknese castle, landmark, landscape, large, latvia, medieval, metal, military, old, outdoor, perse, place, remains, river, rock, ruin, ruines, scenic, sky, stone, view, wall, water, weapon,