Even with today’s technology, experts say we couldn’t build the Giza pyramid. So well aligned with the cardinal points. The gap between the rocks. It would be difficult to achieve the same precision. The granite rocks used in the King’s Chamber were taken from hundreds of miles away. Such large and perfectly cut rocks. They built Giza 4,500 years ago, although there is some dispute as to when. The Egyptian pyramids remain a mystery, they represent the work of a high civilisation.