Pyramid of Neferefre

The Pyramid of Neferefre, also known as the Pyramid of Raneferef, is an unfinished Egyptian pyramid from the 5th Dynasty, located in the necropolis of Abusir, Egypt. After the early death of Pharaoh Neferefre, the unfinished building was reconstructed into a geometric mastaba, becoming the burial place of the deceased king. Despite the demolition of the actual pyramid, the complex was augmented through extensive construction of temples by Raneferef's successors.^[7]

• http://en.wikipedia.org/wiki/Pyramid of Neferefre