I've been writing up lists of ideas for special areas, puzzles, traps, and other ways to challenge players in order to get keystone treasures in my megadungeon. I figure, if these treasures are important enough to give out rumors of them, and make them into the objectives of exploration, most of them had better be a bit harder to find than just laying there as part of the ogre's pile o' loot.
Most of my ideas are fairly 'in game' or things that would be part of the environment of the dungeon, or things that would be fair tests of character knowledge. Some, though, are purely things that the players may know or be able to figure out, but would actually be impossible (or nearly so) for a character from a medieval fantasy world.
References to pop culture, music, literature, and the like are things that just would be beyond the pale of your standard D&D character. I've got no problem putting these sorts of things in my dungeon, but I know some players out there don't like them. I think they're fun, though, and as long as it's fun, I don't care.
I'm kind of curious, how many of the folks reading this blog (or I guess realistically, how many of the dozen or so of you who actually post comments after reading) mind these sorts of player knowledge puzzles, and how many find them annoying or counter-verisimilitudinous?