This great city has an enormous boulder, where millions of years ago, there was a volcano which left an enormous monolith as a remnant of its life in this world. This boulder is the third largest one in the world and was considered by the Chichimecas as a sacred place and nowadays it is visited by people from all over the world who marvel at its grandeur and splendor. Narrow, colorful streets converge at the main plaza of this spot, taking us to a space that is arrested in time.