I figured there would be a fair diversity of opinions here, and it's a topic I really don't quite udnerstand so I'd be interested in hearing what others think. Games have a wide variety of settings, from monster battling (pokemon/yugioh tcg) to scifi galactic conquest (Eclipse) or even more mundane activities like farming (agricola) and building infrastructure (powergrid).
So what are some game settings--oraspects of those--(board/cardgames preferred) that you've found highly appealing, and why?