Afrika-Asia-America?

Goku Desho- No one suggested that one man was present on every site. But you can be urred that one man originally made a design and layout and those ideas were shared thru the generations with others. Global travel was more than you give it credit. I suggest that travel from continent to continent was often done and dna studies have proven that. Considering that archaologist have confirmed that all pyramid and mound structures construction are the same with simply the use of different building materials I would think that somewhere along the line however many thousands of years ago that those ideas originated in a single area and ultimately with the original designer. I thought you might be able to read that into what I was giving as an answer but I was wrong I guess.