Ключевые слова: ancient, architecture, blue, border, boundary, building, cathedral, church, coast, column, deserted, estonia, estonian, europe, european, fall, fortress, green, historic, holy trinity, ivangorod, leningrad, military, narva, old, pillar, post, prohibition, red, region, river, russia, russian, sign, sky, state, stripes, sunny, symbol, tourism, travel, wall, worth,