<P> Of the three, only Khafre's pyramid retains part of its original polished limestone casing, near its apex . This pyramid appears larger than the adjacent Khufu pyramid by virtue of its more elevated location, and the steeper angle of inclination of its construction--it is, in fact, smaller in both height and volume . </P> <P> The Giza pyramid complex has been a popular tourist destination since antiquity, and was popularized in Hellenistic times when the Great Pyramid was listed by Antipater of Sidon as one of the Seven Wonders of the Ancient World . Today it is the only one of those wonders still in existence . </P> <P> This site, halfway between Giza and Abu Sir, is the location for two unfinished Old Kingdom pyramids . The northern structure's owner is believed to be pharaoh Nebka, while the southern structure, known as the Layer Pyramid, may be attributable to the Third Dynasty pharaoh Khaba, a close successor of Sekhemkhet . If this attribution is correct, Khaba's short reign could explain the seemingly unfinished state of this step pyramid . Today it stands around 17 m (56 ft) high; had it been completed, it is likely to have exceeded 40 m (130 ft). </P> <P> There are a total of fourteen pyramids at this site, which served as the main royal necropolis during the Fifth Dynasty . The quality of construction of the Abu Sir pyramids is inferior to those of the Fourth Dynasty--perhaps signaling a decrease in royal power or a less vibrant economy . They are smaller than their predecessors, and are built of low - quality local limestone . </P>

Who was pharaoh when the pyramids were built