Ключевые слова: activity, architecture, beautiful, blue, bridge, city, cityscape, clouds, culture, daylight, ecology, evening, exploration, heritage, historic, landmarks, landscapes, life, local, nature, outdoors, pedestrian, petersburg, relaxation, river, saint, scenic, sightseeing, sky, skyline, structure, summer, tourism, traditions, transportation, travel, trees, urban, vacation, views, water, waterfront, waterways,