25 unexpected facts about the Egyptian pyramids

Until now, the truth about pyramids is still a big question that scientists do not have an exact answer.

Most of us know the pyramid is the great architecture of ancient Egypt. These pyramids are also the burial place of Pharaon kings, containing many mysteries that scientists have not yet discovered.

1. The three pyramids at the tomb of Giza, also known as Giza Necropolis, are the most famous Egyptian pyramids. However, in fact, 140 pyramids were discovered in this area.

2. The oldest pyramid known as the Djoser pyramid, was built in the 27th century BC.

3. The largest pyramid in the world is Khufu pyramid, also known as the Great Pyramid of Giza. With initial height up to 146.5m and current height is 138m.

4. Pyramid of Giza is the tallest man-made structure in the world in 3871 years, until the Lincoln church in England was built in 1311, losing this position.

5. The Great Pyramid of Giza is the oldest architecture of the 7 wonders of the ancient world. Also the last ancient wonder remains in the world.

6. There are many different records of the number of workers involved in building pyramids in Egypt. According to scientists' estimates, the construction of a Giza pyramid requires about 100,000 people.

7. Beside the pyramid of Giza is the world's largest sphinx statue, this is also the largest monolithic statue in the world so far. The face of the Sphinx is said to be sculpted according to Pharaon Khafra's face.

8. All pyramids were built on the western bank of the Nile, heading towards the setting sun and the symbol of the land of the dead in ancient Egypt.

9. Inside the pyramid are tombs that bury the richest kings and people of ancient Egypt. They were buried with gold everyday objects, the Egyptians believed they could use them in the afterlife.

10. The architect who built the first pyramid was Imhotep, a famous engineer, doctor and scientist from ancient Egypt. He is said to have designed the world's first pyramid, the Djoser pyramid.

11. Scientists agree that pyramids are built of large blocks of stone, sculpted into square blocks of the same size. However, this way of moving and placing these giant stones is still a mystery.

12. How to build pyramids varies from time to time, along with the development of science. Experts discovered that the pyramids were later built in a completely different way than the oldest pyramids before.

13. After the pyramids were built in ancient Egypt, there were many other pyramid structures built around the world, including pyramids in Sudan.

14. The Pyramids of Giza were destroyed by Al-Aziz, however, because the structure of the giant rocks was too strong, the destruction was unsuccessful. However Al-Aziz had successfully destroyed the Menkaure pyramid.

15. The three pyramids of Giza are built in the right position of the three largest stars in the constellation Orion. In ancient Egypt, the constellation of Orion symbolizes the god of rebirth.

16. The Great Pyramid of Giza was built by 2,300,000 stone blocks. Each block has a weight of over 50 tons.

17. The stones that built the pyramid were originally covered with white limestone outside. When the sun shines on, stones that reflect light make the pyramid shine like a jewel.

18. When reflecting light, these pyramids can be seen from the Moon.

19. Although the amount of heat outside the pyramids is huge, this is a hot desert all year round. But the internal temperature of the pyramid is always stable at 20 degrees C.

20. It is difficult to be accurate, but the mass of Cheops pyramid is about 6 million tons.

21. Cheops pyramid was built facing north. However, because the North Pole changed over time, the direction of the pyramid was deviated from the North. Since then scientists can accurately calculate how much our North Pole has moved.

22. One of the reasons that the pyramid lasts so long is because of the mortar used to mount the blocks. This is a special mortar that we have not known until now.

23. Contrary to many stories told, the pyramids were built by slaves and prisoners. In fact, it is very likely that these pyramid builders are skilled and paid workers.

24. Although the ancient Egyptians often engraved symbols or hieroglyphs on their structures. However, so far we have not found any symbols or hieroglyphs inside the Giza pyramid.

25. An average pyramid takes about 200 years to complete, meaning it takes 2 to 3 Pharaohs to complete a pyramid. However, at the same time, many pyramids were built at the same time.