Arizona is a state in the southwestern region of the United States. It is also part of the Western United States. It is the sixth largest and the 15th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is one of the Four Corners states. It has borders with New Mexico, Utah, Nevada, California, and Mexico. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912

Arizona has the longest stretch of Route 66 still in use today. Cities that line this historic road are as rich in history and tradition as the road itself. The highway was decommissioned in 1985, although portions remain as State Route 66.