"I walked through the poor’s quarters, and my eye was not harmed. All functional, and simple, and crude, made on the whims of fate and delivered by immediate need.
I walked through the merchant’s quarters, and my eye was bored. Pretensions where nothing backed them, striving for appearance without substance, evidence of changing wealth, too much only began, too much never finished.
I walked through the place where the powerful lived, and my eye was tired. Too much of attempted beauty turned hideous, and a lack of taste was made worse by willing lackeys.
But then I’ve seen the treasure of the city. A cathedral, that was part of the sky, columns, and arches to carry the weight of the world, shapes to let your mind fly along, and ornaments to stop by. A place to ponder, to be pleased to be alive, to accept suffering, and to realize your mistakes. This is a place I could learn from."
The PCs are sent with a diplomat to another country to protect him and do his bidding. There may be some espionage, rescuing, downright bullying, etc. Could make a nice medieval, special operations background.