How the pyramids were built in Egypt
17:27
First View of this Pyramid Construction Technique
18:46
How To Make Roman Concrete
7:07
How I Would Build The Great Pyramids
1:01:43
Los Megalitos de Tiwanaku / Pumapunku son Geopolímeros Artificiales
16:36
How Sand Built the Great Pyramid
9:41
The Great Pyramid reveals how it was built!
9:12
Are Geopolymers BETTER than Portland Cement?
10:28