Mesa Verde National Park in southwestern Colorado encompasses about 4,000 prehistoric sites of the Anasazi people.

The Anasazi people from this region built reservoirs and directed rain water through ditches to water the crops in the terraces.

But this is New Mexico, and these are the ruins of great towns built by the prehistoric Anasazi people.

Researchers who believe that the Anasazi people of the American Southwest widely practiced cannibalism have been accused of racism by their descendants, the Hopi.

Some of the oldest evidence of Native Americans in the southwest are from the Hopi and the Anasazi people.

She then went on to work in Dolores, Colorado, studying artifacts from the Anasazi people.

A thousand years ago, the Anasazi people in Chaco Canyon in northwestern New Mexico had far fewer options.

The Southwest has the worst droughts; one is thought to have lasted over 500 years and to have decimated the Anasazi people.

It is thought that these Anasazi people lived in these cave dwellings to optimize the amount of sustainable land to produce crops.

Moqui Cave was once used by Anasazi people as a shelter or food store, according to archaeological digs in the area.