Gambling is almost as old as humanity. However, few visitors really know the history of casinos and the origin of the oldest ones, which take guests on a journey into the past. Surprisingly, one of the best-known casinos – the Monte-Carlo Casino – is not among the 5 oldest ones as it opened in 1863. Nevertheless, it is still one of the most important tourist attractions in the entire Principality of Monaco. What establishments are those with the longest history? Tourism Review presents the most fascinating and the oldest casinos in the world.