Ключевые слова: abstract, architectural, architecture, background, building, city, concept, conceptual, concrete, construction, design, down, exterior, floor, future, geometrical, goal, handrails, idea, iron, metal, minimal, minimalism, modern, outdoor, perspective, pole, railing, red, regulation, safety, stair, staircase, stairs, steel, step, steps, stone, structure, success, sunlight, sunshine, up, urban, view, walk,