Hi, in the many civilization in th world there are some which are elder than others and there is a one which is much more mystery than any other one. Yes the answer is Egypt. Specially pyramids. It is yet like a mystery that how they built pyramids because pyramids are made pyramids are made of big stones and those big stone are not expected to transport easily by human so that some theories are generated like someone say that aliens helped human to built these pyramid while here is no evidence about it. Let's watch the video to learn about it.