The evolution of designs from the pit houses to pueblos was due to a series of progressive improvments. While the pueblo is build above the ground, the pit house was both above and below the surface. The circular kiva became a gathering place for people, protection against weather, and could be defended. There is also evidence that grains were stored there and that such graineries were also sealed, and the oxygen removed by burning corn cobbs to eliminate rodent infestations. Much of the truth of things are unknown and only revealed by the evidence that we find and history that we know. Created in RealityCapture by Capturing Reality from 72 images in 00h:41m:09s. Source: Objaverse 1.0 / Sketchfab