What are the three pyramids in Giza, Cairo?

The Great Pyramid in Egypt is the tomb of Khufu, the second king of the fourth dynasty in Egypt. It was built around 2690 BC. The original height is146.5m, and the top is peeled off due to years of weathering10m, but the current height is136.5m; Each side of the base is more than 230 meters long, the triangular surface is inclined by 52, and the bottom area of the tower is 52,900 square meters. The tower consists of 2.3 million stones, each weighing an average of 2.5 tons. 65438+ ten thousand people took 30 years to build. The passage inside the pyramid is open to the outside world, and its exquisite design and accurate calculation amaze the world. The second pyramid is the tomb of King Havra, son of Khufu. Built in 2650 BC, it is 3 meters lower than the former and now it is 133.5 meters higher. But the architectural form is more perfect and spectacular. There are temples and other ancillary buildings and the famous Sphinx in front of the tower.

The third pyramid belongs to King Koala, the grandson of Khufu, and was built around 2600 BC. At that time, it was the decline of the fourth dynasty, and the pyramid buildings began to be corroded. The height of the Menkoala Pyramid suddenly dropped to 66 meters, and its internal structure collapsed. The stones used in the three pyramids can build a wall 3 meters high and 30 centimeters thick around the French border. The inclination of the pyramid is 52, and each stone is closely connected. You can't find the gap, even the tip of the knife can't get in. You have to admire some techniques such as measurement and engineering in ancient Egypt. There is a famous Sun Boat Museum in the south of pyramid of khufu. Khufu's son used a solar boat to transport Khufu's mummy to the pyramid for burial, then took the boat apart and buried it underground. The museum was built on the site unearthed by the sun boat. The hull is made of pure wood structure and tied with ropes.

Pyramids of Giza