Inside Pueblo Bonito ruin in Chaco Canyon New Mexico. This a very large ruin, in excellent condition and part of it is open to the public for exploration. Chaco was apparently the center of culture at the time. Several straight-line “roads” converge here, and the roads lie in straight lines regardless of cliffs, or other obstacles. If you go here there’s only one place to stay, and that’s the campground. The surrounding private lands are closed to camping. So get there early.