Oh I didn't mean modern, I still meant a sword-and-sorcery type civilization, just built in the ruins of a much older one, one that possibly reached heights of arcane magic that haven't been seen since that civilization fell.

Think of it, gargantuan ruins, collapsed statues, overgrown towers, and through it all signs of new habitation. Some kids run through the ruins, looking almost like Aladdin as they traverse the strange environment. The hollow head of an ancient fallen statue being repurposed as a small shop for trinkets and potions. Rusted sewer covers through which running water can be seen, and sometimes in the night a violent scraping and splashing can be heard, as though some clawed thing was crawling at great speed through the ancient storm drains. A young man, wielding a crudely made sword purchased from a fellow selling weapons from a rug, swallows his fear as he takes his first steps into the deeper city. Will he return with treasures? Stories? Or will he, like so many others before him, vanish into the crumbling ruins and leave not a trace of his passing, his disappearance a mystery that leads others to venture forth in hopes of learning his fate?