This wonder of the world is an exciting getaway to outdoor adventures like hiking, rafting, mountain biking and sightseeing. Other not-to-be-missed unique landmarks include Sunset Crater Volcano, Walnut Canyon National Monument, the Petrified Forest and Painted Desert. Looking for a little winter wonderland? Head to the Arizona Snowbowl and ski and snowboard down the well-groomed runs of the San Francisco Peaks.