In ancient times these pyramids were covered in polished white limestone and would have been dazzling, reflecting the sunlight. Over the years the limestone has weathered away, been broken/damaged by earthquakes, or deliberately removed.
In ancient times these pyramids were covered in polished white limestone and would have been dazzling, reflecting the sunlight. Over the years the limestone has weathered away, been broken/damaged by earthquakes, or deliberately removed.
Some of the pyramids are believed to have been built over a period of about 20 years and would have required a workforce of as many as 200,000 people.