Anything exciting to do in Riyadh

Hi people living in Riyadh. I have been there already several times on business and I have checked out the Kingdom tower and several restaurants but thats it. I will be going again on 19th nov till 25th of November. Do you have any suggestions to anything which is cool to do? A dessert tour? A mosque to visit? Anthing beside staying at the hotel? I am looking forward to your feedback. Thanks.