Thermopolis is best known for its hot springs, the largest mineral hot springs in the world. It's also the location of the state bison herd. (How many states have their own bison herds? Probably only the one whose state flag bears the image of a bison: Wyoming.) In addition to those attractions, did you know that Thermopolis has its own version of a popular board game? It's an interesting place to visit for any and all of those reasons, not to mention its proximity to the beautiful Wind River canyon.