As of my last knowledge update in January 2022, I don’t have information about Cristiano Ronaldo visiting the CR7 museum and posing next to a wax statue of his son in Saudi Arabia. Events and activities involving public figures may occur after my last update, and I don’t have real-time data.

If this event has happened recently, I recommend checking the latest news, social media updates, or official announcements for the most current information on Cristiano Ronaldo’s activities, including any visits to the CR7 museum in Saudi Arabia.