Ключевые слова: advertisement, america, american, background, billboard, board, border, car, city, color image, concept, country, day, design, destination, direction, driving, green, greeting, highway, holiday, illustration, information, interstate, journey, metal, no people, north, old, outdoor, road, road sign, road trip, sign, signpost, sky, state, street, symbol, text, tourism, traffic, transportation, travel, united, us, way, welcome,