Pictured above are cliff dwellings in Canyon de Chelly, Arizona, 
which were home to the Anasazi Indians.  These elaborate cities of 
Adobe multistoried buildings were built high in the cliffs for 
protection against hostile Indian tribes.  Included in the villages 
were circular religious houses, where a deep hole in the floor, the 
"sipapu," reminded the people that their ancestors had come from 
within the earth.  "Anasazi" means "basket maker",  and these Native 
Americans developed their basket making and farming techniques as 
early as A.D. 100.  Mesa Verde in Colorado was another home of the 
Anasazi, who are now extinct.  It is believed that the Pueblo Indians 
are their descendants.