The Hollywood Casino Amphitheatre is one of St. Louis' most popular concert venues from May-October, as it is St. Louis' only outdoor concert venue. The amphitheater is located in Maryland Heights at the center of St. Louis County. It hosts a wide variety of shows from rock and metal to R&B and classics. The sound system is superior to other concert venues usually designed for sporting events. The sound comes through clear and beautiful, whether you are sitting in the front row or in the lawn seats at the back.