A pair of giant white horns pierce the sky alongside Interstate 19, calling drivers back to the days of the Wild West. The horns are part of a larger longhorn skull, which serves as the entrance to the Longhorn Grill in Amado, Ariz. Slightly south of Tucson, the skull was built sometime in the early 1970s, but locals are strangely mysterious about its origins. It's attached to an adobe building that is occupied by a bar and restaurant, reached by walking through the nasal cavity of the skull. Right across the street is the Cow Palace Restaurant. Cue tumbleweeds.