The stereotypical vision of the Egyptian Pyramids are large mountain like brown piles of stone uprooting from the desert having a rough contour. Though when first constructed around 2500 BC. The pyramids were paper white and as smooth as glass, toping the pyramid was a golden capstone that gleamed in the desert sun. It was an amazing spectacle. The pyramids somewhat stayed in this state until the Arab invasion of Egypt around AD 500. The Arab invaders stripped the pyramid of it’s smooth limestone and built a huge section of Cairo. Many of the Mosques and Palaces of Cairo consist of the Ancient stones of the pyramids. Quite sad actually.