Ключевые слова: abstract, architectural, architecture, ascending, background, billboard, black stream, brazil, climbing, concrete, concrete texture, construction, exterior, gray, handrail, handrail shadow, nobody, pattern, perspective, shadow, shadows, shape, silhouette, so paulo, stair, stair steps, staircase, stairs, stairway, steps, structure, summer, sunlight, sunny, surface, texture, zigzag,