Ключевые слова: ancient, antiquity, architecture, autumn, blue, building, castle, century, city, europe, fort, fortress, frame, green, history, landmark, landscape, medieval, medium, military, moat, mound, olaf, petersburg, protection, russia, russian, saint, sky, square, st, stone, stpetersburg, summer, sunny, sweden, swedish, tourism, tourists, tower, travel, viborg, view, vyborg, wall, white,