River City’s Event Center is the perfect place to host the wedding ceremony & reception of your dreams. Our professional wedding experts can help! Just bring joy. We’ll supply the rest. From the initial planning of your wedding celebration to its finishing touches – and touching finish – our team of experts at River City will make it the joyous, serene occasion that you deserve.Celebrating The Best! Celebrate your wedding at the Best City in St. Louis – River City Casino & Hotel. Overlooking the Mississippi River, rests the grand, all-new River City Casino Hotel boasting 200 luxury rooms and an all new state-of-the-art Event Center that can accommodate up to 600 of your closest friends.