Chaco Canyon's Pueblo Bonito (IMAGE) University of Colorado at Boulder Caption The elaborate burial of two men in Chaco Canyon's Pueblo Bonito great house -- a 600-room, four-story structure that was considered the center of the Chaco world -- indicates the region may have been ruled by kings living in palaces. Credit Image courtesy Steve Lekson, CU-Boulder Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.