The document provides information about pyramids in Egypt. It begins by establishing that Dr. Daniel Knowles from the Egyptian Museum in Cairo is answering questions about the pyramids. It then answers several questions: the pyramids are approximately 4,600 years old and were built as tombs for Egyptian pharaohs starting around that time. It took between 20 to 30 years to build one pyramid, using thousands of workers without modern machinery. The largest Great Pyramid contains around 2.3 million stone blocks and held a ship for the tomb of Pharaoh Khufu.