[Suggestion] Build Fortresses and towers to control your land and remove fog of war.
My idea was (if somebody else has not suggested it.) To use fortresses and towers to show the boundaries of your lands. But also they could be used to prevent (common) monsters to spawn. Because the area around a fort is civilized.
I thought about it because in most countries castles/fortresses were used to control the lands and to house the garrisons. They could also add a bonus to some resources and cost money for maintenance.
