With its slew of nightlife venues, the Hard Rock Hotel and Casino in Hollywood is the equivalent of a Disney World for adults, and 88's Dueling Pianos is its Space Mountain. It's here that pianos literally engage in duels several nights a week. The line-up also includes an '80s night, a karaoke night, and a rock and roll show. So you won't miss it, a giant mural of piano keys is painted on the wall.