Casinos are a huge source of interesting myths, legends, and stories that almost seem too good to be true. There are tales of tremendous good luck ($25 million from slots?), dubious capitalism (atomic bomb parties?), and disgusting personal hygiene (adult diapers to keep a hot streak going?). Some of the most interesting facts about casinos and gambling come from societies where it isn't allowed, proving that it's hard to keep people from the allure of a potential big win.Gamblers in Japan are forced to exploit a huge legal loophole to get their fix, while one of the world's most famous casinos in Monaco forbids locals from playing at all. In the United States, Las Vegas reigns supreme, but Indian reservation casinos across the country are a huge force in the industry as well - despite humble origins. Here are some of the craziest, most interesting facts you probably don't know about the wild world of casinos and gambling.