The center of Johannesburg is the fine-grained pattern (created by shadows cast from the high rise buildings in the city) in the center of this mosaic. On the southern fringe of Johannesburg is a line of light colored, angular patches stretching across the scene. These patches are the great “mine dumps,” the crushed rock that remains after gold extraction from numerous gold mines.
he southern tip of Spain and the northern tip of Africa come close to touching at the Strait of Gibraltar. The small Spanish enclave Ceuta occupies a narrow isthmus of land on the African side of the Strait of Gibraltar; the rest of the surrounding territory is Morocco.