Pyramid of Khafre

The pyramid of Khafre or of Chephren is the middle of the three Ancient Egyptian Pyramids of Giza, the second tallest and second largest of the group [1]. It is the only pyramid out of the three that still has cladding at the top [1]. It is the tomb of the Fourth-Dynasty Pharaoh Khafre, who ruled c. 2558−2532 BC [1]. The pyramid has a base length of 215.5 m or 411 cubits and rises up to a height of 136.4 metres or 274 cubits [1]. It is made of limestone blocks weighing more than 2 tons each [1]. Casing stones cover the top third of the pyramid, but the pyramidion and part of the apex are missing [1]. Arab historian Ibn Abd al-Salam recorded that the pyramid was opened in 1372 [1]. The pyramid was first explored in modern times by Giovanni Belzoni on March 2, 1818, when the original entrance was found on the north side [1].