The Royal Opera House is even more impressive than ever. The period building has been restored to its original glory and continues to be the one of the largest opera and ballet venues in London, showcasing the works of the Royal Ballet, Royal Opera and ROH Orchestra. Expect famous tenors, famous ballerinas and famous audience members as part of the revamped program. You can even take in the stunning architecture without going to a show; the entrance hall and exhibitions are open for viewing and backstage tours are also offered.