The Great Pyramid of Giza, also known as the Pyramid of Khufu
(or Cheops), in Egypt is the only one of the Seven Wonders of
the Ancient World still standing. It is also the oldest. The
Great Pyramid is the royal tomb of the Egyptian Pharaoh Khufu
who lived about 2560 B.C. It originally stood more than
480 feet and is estimated
to be made up of 2.3 million blocks, some weighing up to 9
tons a piece!