Ключевые слова: abstract, art, background, cable, city, colorful, concept, connections, cover, creative, design, diagram, element, generic, graphic, guide, illustration, knot, line, long, many, map, metro, modern, navigate, navigation, network, nodes, ornament, outline, pattern, plan, point, railway, rapid, road, scheme, shape, station, stylish, subway, tile, transport, transportation, travel, underground, urban, wallpaper, way,