Ключевые слова: africa, appointments, architecture, black, center, circle, clay, concrete, constructed, crossing, divide, earth, electricity, equator, exterior, flower, globe, gps, grass, greenwich, ground, known, latitude, line, longitude, marker, meridian, middle, monument, north, outdoor, parallel, place, pole, red, ring, road, sculpture, sign, sky, soil, south, sphere, strip, uganda, white, wire, world, yellow, zero,