Chinese à la Carte game icons

I'm currently working with teammates (including Alice Yang, who is also in this class) on a Mandarin Chinese language learning game called Chinese à la Carte. For this challenge, I started by developing a few icons that could be useful for buttons during gameplay or graphics for marketing. The castle is probably the least self-explanatory: it would be the icon for a "vocabulary palace," modeled after the concept of a mind palace that's used to support memory. Players would use this space to store and sort new vocabulary that they learn.