The metropolitan area of a city reveals its composite material architecture, with monochromatic tints and shades in the facade, interior design, and public space of a building. A variety of materials, including metal, glass, wood, and flooring, are used in the floors, columns, ceilings, fixtures, and lines of the structure. Automotive design, trees, and vegetation add to the urban aesthetic, while light and monochromatic patterns accentuate the symmetry of the structure and road surface.