Pyramid is a mausoleum, so it still has the characteristics of mausoleum architecture, and its structure is divided into two parts; One is an underground building as a tomb; First of all, the building on the pyramid tomb. The dynasties experienced by the pyramids are almost unchanged, while the underground buildings are different with the changes of the times. Compared with the tomb of Mastaba, a series of ancillary buildings around the pyramid have regular corresponding positions, forming the characteristics of the pyramid complex. Pyramid group is one of the magic weapons to build pyramids in ancient kingdom period. In contrast, a single pyramid is a bit lonely. The rise and evolution of pyramids: the history of building pyramids spanned ten dynasties from the third dynasty to the thirteenth dynasty, and experienced three periods: the ancient kingdom, the first middle period and the middle period. The kings of each dynasty had their own pyramids. According to the characteristics of pyramids in different periods, their evolution can be divided into four periods. Decline period and revival period. Egyptian scientists and archaeologists have confirmed through research that the pyramids developed from the early tomb of Mastaba. Heyday: Khufu, son of Sniffero, and two generations of monarchs, Rafe and Menkaure, chose the junction of desert and oasis five miles west of Giza, and successively built three pyramids and their ancillary buildings. They are the famous pyramids of Giza and are recognized as the pinnacle of Egyptian pyramid architecture. Decline period: in the fifth and sixth dynasties, it began to decline. Finally disappeared in the first great turmoil. Renaissance: The pyramid architecture was interrupted for half a century, and was first restored by Mentouhottepii, the unifier of China Dynasty. Speaking of Egypt, we have to mention the pyramids. The pyramids in Egypt have been attracting people for thousands of years. How did the ancient Egyptians build these huge monuments? Why? The most famous pyramids are located in Jisha near modern Cairo, but there are more than 80 pyramids in Egypt, and the rest are in southern Sudan. Each pyramid is a tomb, which was built by Pharaoh to put his body. The pyramid means to help him realize his eternal life, but we don't know why the ancient Egyptians chose the shape of the pyramid. It may come from an earlier tomb, or it may be a ray of light symbolizing the sun, or it may be a staircase leading to heaven. The pyramids in Jisha are the most famous among all the pyramids. These three pyramids are the pyramids of Kufu, Kafu and Monkara. This is an ancient Arabic proverb, which is a tribute to the pyramids, because it is the seven wonders of the ancient world that only exist in this world, and it will last for thousands of years? It has stood for five thousand years in the desert with unstable territory. This is the wisdom of the Egyptian people.