Ключевые слова: aerial, aerial photography, aerial survey, air photo, architecture, blue, buildings, cathedral, christianity, church, city, closeup, cloud, cloudy, dome, famous, fragment, historical, historical center, history, houses, july, landmark, landscape, majestic, many, morning, orthodox, petersburg, religion, roofs, russia, saint, saintpetersburg, st petersburg, stasov, summer, temple, top view, town, trinity, urban, urban development, view,