Ключевые слова: abstract, architecture, art, ascending, background, building, cement, city, climb, concept, concrete, construction, design, detail, down, empty, exterior, granite, gray, grey, light, lines, marble, modern, nature, nobody, old, outdoor, pattern, pavement, perspective, public, rise, stair, staircase, stairway, step, stone, street, structure, texture, up, urban, walk, walkway, wall, way, white,