What is Great Pyramid of Giza?
[[File:Gizeh Cheops BW 1.jpg|thumb|right|250px|The Great Pyramid on The Giza]] The '''Great Pyramid of Giza''' is a huge [[pyramid]] built by the Ancient Egyptians. It stand 18.4 km from [[Cairo]], [[Egypt]]. It is the oldest of the [[Seven Wonders of the Ancient World]], and the only one to remain mostly intact. When it was built it was 146.5 metres (481 feet) tall. It was the tallest building in the world for over 3,800 years. [[Erosion]] and other causes have shrunk it to 138.8 metres. The pyramid was built for [[Khufu]], an Egyptian [[pharaoh]]. It was perhaps built by Khufu's [[vizier]], Hemiunu.<ref>Shaw, Ian 2003. ''The Oxford History of Ancient Egypt''. Oxford University Press, p89. {{ISBN|0-19-815034-2}}</ref> It is believed that it took about 20 years to build, and was completed around 10,500 BC. When it was built, the Great Pyramid was covered by white stones that formed a smooth outer surface. Some of these stones can still be seen around the base. Most of what can be seen of the pyramid now is its basic core 2,300,000 blocks of [[limestone]] and [[granite]]. There have been many different theories to explain how the pyramid was built. Most accepted building ideas are based on the idea of moving huge stones from a quarry and dragging and lifting them into place. Archaeologists found that the [[Pyramids of Giza]] were not built by [[slave]]s, but workers who were paid for working. Their [[grave]]s were found near the pyramid in 1990.<ref>{{cite web|url=http://www.guardian.co.uk/world/2010/jan/11/great-pyramid-tombs-slaves-egypt|title=Great Pyramid tombs unearth 'proof' workers were not slaves}}</ref> There are three known rooms, or chambers, inside the Great Pyramid. The lowest chamber is cut into the rock on which the pyramid was built. This chamber was not finished. The other two chambers are higher up inside the pyramid. They are called the Queen's Chamber and the King's Chamber, but these are modern labels as we do not know how the Egyptians were going to use them.<ref>John Romer, in his ''Th