Phoenix, Arizona, is the nation's seventh largest city, and home to five major professional sports teams: baseball's 2001 world-champion Diamondbacks, football's Cardinals, basketball's Suns, hockey's Coyotes, and the WNBA's Mercury. Spend your free time horseback riding, hiking, mountain biking, rafting, camping, fishing, or golfing in nearby Avondale's 19,000-acre Estrella Mountain Regional Park.