The Inca began their conquest of western South America, In 1200 A.D the Inca was one of many small states of occupying the Urubamba Valley.
The Ancient Pueblo
The Inca constructed walls, building, and entire cities out of enormous blocks of stone, they quarried or extracted the stone in the Andes without the use of iron or steel tools.
Peoples of the great plains
Totem poles are tall elaborately carved and painted tree trunks that honor a revered being or guarding associated with a family
The Mound builders
Some structures were dwellings made by stone and adobe, a clay used for building, Farm fields surrounded the villages.
To survive the bitter winter, some tribes built lodges out of soil and grasses to house whole families, they relied mostly on hunting, gathering, and fishing because farming was not easy on the dry grasslands of the plains
The mounds served a religious and ceremonial purpose, some mounds such as the great serpent mound built Adena in southern Ohio formed the shape of animals. The mounds mostly relied on hunting and gathering but they also tamed wild plants and farmed crops such as barely.