The ancient Alexandria lighthouse is one of the wonders of the old world after the Great Pyramid .... It was always an ancient wonder, so the ancients regarded it as one of the seven wonders of the world, not only for its construction and height, but for its function of protecting ships coming and going to and from the port. It is the oldest use of solar energy in history ..... about the ancient lighthouse of Alexandria. This lighthouse, dating back to pre-Christmas, is still the talk of the whole world.