Ключевые слова: abstract, america, americas, area, areas, art, atlas, background, blue, border, borders, card, cartography, color, colored, colorful, colors, colour, coloured, colourful, colours, communication, concept, continent, contour, contours, countries, country, earth, frontier, frontiers, general, general map, general maps, geography, globe, gradation, gradient, graphic, gray, grey, land, lands, line, lines, map, maps, outline, outline map, outline maps, outlines, pattern, patterns, plain, plan, planet, plans, political, profile, profiles, region, regions, shade, shading, shape, shapes, silhouette, silhouettes, simple, state, states, subdivision, subdivisions, symbol, symbolic, symbols, territories, territory, tone shading, united states, united states of america, us, usa, world,