Ключевые слова: abstract, architecture, black, building, bw, caracole, circle, circular, climb, climbing, cochlea, concrete, corkscrew, curve, design, detail, down, entrance, floor, form, geometric, handrail, historic, home, indoors, interior, old, perspective, railing, rotate, round, rung, shape, singapore, spiral, spiring, stair, staircase, stairway, step, stone, structure, tower, up, vice, walking, white, winding,