I don’t even know how to describe how amazing this place is, so I (lamely) am copying an pasting text from this US National Monument’s official website:
“Reflecting one of the longest continuously inhabited landscapes of North America, the cultural resources of Canyon de Chelly-including distinctive architecture, artifacts, and rock imagery-exhibit remarkable preservational integrity that provides outstanding opportunities for study and contemplation. Canyon de Chelly also sustains a living community of Navajo people, who are connected to a landscape of great historical and spiritual significance—a landscape composed of places infused with collective memory.”

By all means, take a tour of the valley. You’ll get a great feel for the land that is still being tended to this day, and you’ll catch a glipse of anasazi ruins, as well.