Honestly, I don't think this idea is going to be approved, but I'd just like to put it out there. Yes, I know that there are some secret areas within Regalia; the sewers, top of the church, room under the bridge, sunken ship, etc. But my thought came to me after using 3 enderpearls to climb around and on top of the Regalian Prison(Yeah, that's been me lately, not even out of character either), I figured out, after the usage of 2 of the enderpearls, that there is no way to get into the prison other than being thrown in by a guard. The two towers have private trapdoors on them(if you don't believe me; there's six trap doors in total, 3 per a tower), so that eliminates the option of sneaking around within the prison and maybe breaking out your friends who've been arrested for assorted RP crimes. Well, "that sucks." was my first thought, then my second thought was, "It'd be pretty cool if there were some secret tunnel network that could access different places all over the city", like the prison, and the origin of the tunnel network be somewhere outside of the walls of Regalia(just to add the aspect of having to find it.). As I said before, I honestly don't think many people will like this idea(mainly the guards and those who like the guards), but I thought I'd just put it out there. Being that the sewers aren't actually accessible by everyone and don't really lead to underneath the jail(chunk lag can show you a lot of cool things when it happens).