Ключевые слова: abstract, architecture, art, background, black, building, business, business center, center, city, concept, construction, contemporary, design, down, entrance, estate, exterior, finance, futuristic, glass, green, interior, light, modern, modern architecture, nature, nobody, office, old, outdoor, pattern, perspective, prague, real, stair, staircase, stairs, stairway, step, stone, structure, travel, up, urban, walk, wall, way, window,