This is How They Built the Inca Stone Walls | Ancient Architects

NEW CHANNEL FROM ANCIENT ARCHITECTS: “Space and Planet“ launches February 2019. Please subscribe now: More than a year ago I made a video about the famous Inca or Pre-Inca Stone walls of Peru and I presented the hypothesis that the reason they are made from irregular blocks of stone yet interlock so perfectly is because they are made by stacking cement bags. Although I’ve presented the idea, many viewers have pointed out a number of problems with the hypothesis and I have to admit t