Once the home of the famous Las Vegas Improv, this comedy club recollects swanky joints you'd expect to find in the Big Apple. From the attractive canopy-covered entrance to cozy cafe-style tables, there's little about Riviera that doesn't breathe class and intelligence. Acts are first-rate, and it's not uncommon to find yourself one of 350 well-dressed audience members laughing 'til it hurts as solid acts like Chris Rock, Bobcat Goldthwait, Brett Butler, or Jimmy Walker try out new material.