Ключевые слова: above, aerial, aerial photography, aerial survey, ancient, architecture, bay, blue, castle, citadel, city, cityscape, day, deserted, floes, fortress, from above, historical, ice, ice drift, landmark, landscape, leningrad region, march, medieval, no people, nobody, olaf, old, russia, saint, sky, snow, spring, sunny, top view, tower, urban, view, vyborg, winter,