The Aztecs and the Mayans at least progressed to the point where they mastered masonry and built temples that stood the test of time.

Their northern brethren didn't make it past teepees made of hides and wooden longhouses.

There isn't a single notable American Indian or Canadian shrine that exists in modern day.

The people of ancient Sumer did better 5000 years prior and they lived on sand before irrigation and animal husbandry.