Ancient pyramids, such as the pyramids of Giza, were used as a burial location for pharaohs. Modern pyramids, such as the Louvre Pyramid, are made for design and they are pleasing to the eye.
In most of the world, pyramids were tombs, but not in Egypt. We have only a vague idea about why so many cultures built pyramids. This ebook is awfully long, but it explains a lot of things that were previously unknown. www.saturniancosmology.org/