The US state of Arizona, also known as the Grand Canyon state is located in the southwestern region of United States. Phoenix, the largest & the capital city of Arizona has a vibrant downtown that attracts thousands of tourists all year round. Other major cities in Arizona include, Flagstaff, Sedona & Tucson. As with most western states, the best way to enjoy the sights of Arizona is by car. Although most major cities offer public transportation, state-wide public transportation is limited.