These are three models me and a friend did for school a while ago, specifically for our middle school graduation presentation exam in the grammar school. (in Germany, middle school graduation exams are part of the grammar school career)
My friend mostly did the mathematical part - determining angles, lengths and so forth while I did most of the crafting work.
The left model is showing the Mayan Pyramid of Kukulcán (which is the mayan name of the perhaps more well known "Quetzalcoatl") It has a scale of 1:250.
The right model is showing the Cheops Pyramid of Eqypt, it has a scale of 1:1222. The small model beside it shows the Mayan pyramid in the same scale.
The topic of the project was the theory that Egyptians have travelled over the atlantic ocean and brought their pyramid building culture with them.
The historian / adventurer Thor Heyerdahl tried to prove that the possibility exists by building an original Egyptian ship as it existed in the ancient period and sucessfully crossed the atlantic ocean on the second try after his first ship had broken not far away from the south-american coast due to construction errors.
However, the possibility that this theory is true is actually pretty low since there are too many differences, not only in pyramid design. Also, gene analysis has shown that the indigenous people from south america have their roots in asia - their ancestors travelled on the bering strait.
Thanks for the comment.
When I first heard about the idea, I thought it would make sense. But after getting more into the topic, I also found out that there are some kind of pyramids in almost every culture on the planet. That means that if the pyramid building has a connection between the cultures, it must stem from times when all "modern humans" were still in Africa. Who knows? Maybe the first tribes of Homo Sapiens from Africa did invent the pyramid design and so it has spread all over the world and just got reinterpreted by the cultures?