Ключевые слова: ancient, background, beautiful, bloom, blossom, building, cannon, castle walls, cityscape, colorful, defense, europe, flower, flower bed, fortification, fortress, garden, grass, green, historic, historic building, historical cannon, historical place, history, istanbul, istanbul bosphorus, landmark, landscape, medieval, museum, nature, old, outdoor, park, plant, protection, purple, roumeli hissar castle, season, spring, stone, stone wall, stripes, sunny day, tourism, turkey, turkey istanbul, turkish, white, yellow,