Facility & Directions Carousel Charity Horse Show - 40th Anniversary - March 17-20, 2011 - WestWorld - Scottsdale, Arizona WestWorld of Scottsdale is home to Carousel. WestWorld is a premier, nationally recognized equestrian center located in Scottsdale, Arizona. The large complex includes the main Equidome arena, two covered arenas, three outdoor arenas and a spacious warm-up area. Click on photos below for more information. WestWorld General Info. Equidome. Wendell Arena (Outdoor). Arenas 3 & 5 (Covered). Stalls. Directions.