There is some debate on whether Venetian explorer Marco Polo actually introduced pasta to Italy after sampling it in China. In any case, he paved the way for culinary adventurers who jump in feet first and try exotic ethnic cuisine, whether it is pickled sour mango in Cambodia, guinea pigs in Peru, chicken feet in China, or grasshoppers in Africa. The weirder sounding the dish, the better.
Culinary tourists delight in the tastes, textures, smells, and sights of other nations, and sometimes plan their vacation travel around culinary pursuits. Extreme eaters are willing to try something no matter how much it grosses out their friends. They helped make "nose to tail" eating trendy, and will seek out haggis just for the fun of it.
They pride themselves in being clean plate eaters, and making sure no part of any animal goes to waste. Sometimes culinary tourists/extreme eaters are well-traveled, other times they just live in a city that has a large immigrant population, either way, food for them is more about the journey than the destination.