Ключевые слова: abstract, africa, america, art, asia, atlantic, australia, background, bitcoin, block chain, border, canada, cartography, circle, communication, continents, country, creative, design, dish, earth, education, eurasia, europe, flat, floral, food, frame, globe, human, information, map, modern, navigation, north, ocean, pacific, planet, problem, science, shape, south, space, symbol, template, transportation, usa, white, world, worldwide,