The pyramids are one of the 7 wonders of the world,but if you are asking about their Importance in the past, the Pyramids were built as tombs, as the ancient Egyptians believed that there is another life after they die, so they built the pyramids & buried all their important things, gold ,food and drink with them in order to use them in the next life. & as great Kings, they wanted their tombs to be extraordinary.I wish that's helpful :)
