I blame it on watching the Steve McQueen version of Papillon way too many times, but I'm hankering to run a jail break adventure with two slight twists.
First, instead of the old "you wake up naked with non of your belongings" version of the PCs being imprisoned and needing to escape, I want to have the PCs start on the outside and break somebody out. Second, and this is where I'm soliciting suggestions, I don't want a jail in the middle of a city. Rather I'm looking at a penal colony or gulag style prison. In other words while there are walls to enclose the prisoners, the surrounding countryside is the final fortification imprisoning the poor bastards.
So, assuming that Khromarium has a "hard labor" category for prisoners, where would the city elders have the punishment take place away from the city itself and possibly provide some economic benefit?