sentences:  Retail offers a variety of restaurants, boutiques and tourist shops, which include Canyon Cafe, Mi Amigo's Mexican Grill, Subway, and more.The large central plaza at Arizona Center includes richly landscaped courtyards and fountains designed by SWA Group, which won a National Merit Award by the American Society of Landscape Architects for its work on the plaza.Nearby, a 30-story Sheraton Phoenix Downtown hotel opened in the fall of 2008.