The pyramids of Sudan do not rival those of Egypt. The people of Sudan probably had better things to do than create artificial mountains to honor dead kings, not that they were incapable of doing so. I personally think that the pyramids were a monumental waste of effort when they could have built roads, fortresses or canals but the Egyptian pyramids are man-made marvels.
It’s no lie,
You can keep the edge of a razor as sharp as an eagle’s eye
You can grow a hedge that is vertically straight over ten feet high
All you really need is a pyramid and just a little luck
https://www.youtube.com/watch?v=O-KWb6JuYp0