700 years ago, in the area that we today know as Arizona and New Mexico, the Anasazi people came en masse from the north to build large stone settlements. Their predecessors (the Hohokam) had built with sticks and mud, and as a result the older settlements are much harder to find today. The Anasazi settlements stand as grand, abandoned cities that now house a mystery: why did these people move south? What would cause a thriving civilization to pull up stakes and abandon its homeland?
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