Great Pyramid of Giza

The Great Pyramid of Giza (also called the Pyramid of Khufu  and the Pyramid of Cheops) is the oldest and largest of the  three pyramids in the Giza Necropolis bordering what is now El Giza, Egypt. It is  the oldest of the Seven Wonders of the Ancient  World, and the only one to remain largely intact. It is believed the  pyramid was built as a tomb for fourth dynasty Egyptian  Pharaoh Khufu  (Cheops in Greek) and constructed over a 20-year period concluding  around 2560 BC. The Great Pyramid was the tallest  man-made structure in the world for over 3,800 years. Originally the  Great Pyramid was covered by casing stones that formed a smooth outer  surface; what is seen today is the underlying core structure. Some of  the casing stones that once covered the structure can still be seen  around the base. There have been varying scientific and alternative  theories about the Great Pyramid's construction techniques. Most  accepted construction hypotheses are based on the idea that it was built  by moving huge stones from a quarry and dragging and lifting them into  place.
There are three known chambers inside the Great Pyramid. The lowest chamber is cut into the bedrock upon which the pyramid was built and was unfinished. The so-called Queen's Chamber and King's Chamber are higher up within the pyramid structure. The Great Pyramid of Giza is the main part of a complex setting of buildings that included two mortuary temples in honor of Khufu (one close to the pyramid and one near the Nile), three smaller pyramids for Khufu's wives, an even smaller "satellite" pyramid, a raised causeway connecting the two temples, and small mastaba tombs surrounding the pyramid for nobles.
There are three known chambers inside the Great Pyramid. The lowest chamber is cut into the bedrock upon which the pyramid was built and was unfinished. The so-called Queen's Chamber and King's Chamber are higher up within the pyramid structure. The Great Pyramid of Giza is the main part of a complex setting of buildings that included two mortuary temples in honor of Khufu (one close to the pyramid and one near the Nile), three smaller pyramids for Khufu's wives, an even smaller "satellite" pyramid, a raised causeway connecting the two temples, and small mastaba tombs surrounding the pyramid for nobles.
MATERIALS
The Great Pyramid consists of an estimated 2.3 million limestone blocks  with most believed to have been transported from nearby quarries. The  Tura limestone used for the casing was quarried across the river. The  largest granite stones in the pyramid, found in the "King's" chamber,  weigh 25 to 80 tonnes and were transported more than 500 miles away  from Aswan. Traditionally, ancient Egyptians cut stone blocks by  hammering wooden wedges into the stone which were then soaked with  water. As the water was absorbed, the wedges expanded, causing the rock  to crack. Once they were cut, they were carried by boat either up or  down the Nile River to the pyramid.
CASING STONE
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
