Ключевые слова: background, bulgaria, commuter, direction, emptiness, evening, green, industrial, industry, iron, journey, junction, krum, light, line, metal, modern, movement, outdoor, outdoors, perspective, platform, public, rail, railroad, rails, railway, railway train, road, speed, station, steel, structure, summer, sunlight, sunset, top view, tourism, town, track, traffic, train, transit, transport, transportation, travel, trip, view from above, way,