I thought of a slightly different way to help new players learn the game while they play.
Right now, when you click on a ruin, you get quite a bit of information. I already know most of it, so it's far more than I need to see as an experienced player. However, on the other side of the coin... it isn't enough information to allow a completely new player to understand the ruin's function.
I think a better system wold be to have a smaller window displaying only the ruin's name and level, and a 'more information' button. The button being a link to the relevant page of the (updated) wiki. The same system could be used for other windows (like the boat window, city window, and conquer window).