A team of archaeologists say they have found what could be the portrait of a king carved into stone at the foot of a huge prehistoric pyramid in northwest China.
They made the find at the 4,200-year-old Shimao pyramid in Shenmu, Shaanxi province. At more than 70 metres (230 feet), Shimao is about half the height of the Giza pyramids that were built around the same time in Egypt.
