Ключевые слова: 2015, architecture, beautiful people, beauty, blue, building activity, built structure, business, business finance and industry, circle, city, city life, cityscape, concepts, concepts topics, construction industry, curve, design, flooring, footpath, geometric shape, glass material, horizontal, indoors, lightweight, metal, modern, no people, office building exterior, railing, reflection, shiny, staircase, steps, store, window,