Ключевые слова: architecture, blue, boulevard, buildings, bulgaria, busy, cafe, center, church, city, clear, crowded, destination, dome, edifices, europe, historical, impressive, landscape, leafless, life, lively, modern, nature, nedelya, outdoors, paved, pavement, pedestrian, people, scene, season, sightseeing, sky, sofia, street, streetlights, sunny, tourism, townscape, travel, trees, trip, urbanism, vitosha, walking, walkway, winter,