This an image of one of the kivas in Pueblo Bonito at Chaco Canyon. The literal translation of the word kiva is “world below”. It is thought that they served as gathering places. Some of the smaller kivas may have served as living areas, and the larger ones as sacred places for religious ceremonies. There are thirty-seven kivas in Pueblo Bonito alone, and well over a hundred in Chaco Canyon. The largest at Casa Rinconada is 19 meters in diameter, and has a window which is aligned with the rising sun on the summer solstice. The light from the window shines on a recessed niche in the opposite wall. This is just one of the amazingly accurate architectural/archeological features found in Chaco Canyon.