Do we know why the pyramids or pyiramidal shaped objects were built from Africa to Southeast Asia, all the way to Mexico and South America, all built for some kind of religious purpose by the civilizations that didnt even know that other one existed, at approximatly same time? How do we explain such thing? Thank you
It'd be nice to have some more details, but here's an older thread on the subject which covers some important aspects of the subject: note especially the longer responses by /u/Pachacamac. The tl;dr: (1) they aren't all 'pyramids', that's just a name used in modern English that artificially lumps together many different kinds of structure; (2) there's only so many ways of building a large structure out of stone, and superficial resemblances are a byproduct of that.