The Great Pyramid of Giza, one of the Seven Wonders of the World, is the largest pyramid ever built. A mass of limestone blocks covering 13 acres (5.3 hectares), it was originally 756 feet (230 m) along each side of its base and 482 feet (147 m) high. It has several passages, two large chambers in addition to one below ground level, and two small air chambers for ventilation. It is believed to have been built as the tomb of fourth dynasty Egyptian King Khufu, who was known by what Greek name? Discuss