https://forums.elementalgame.com/393014
3.6 How can I increase the quest and notable locations level of my sovereign?
- You can increase your quest and notable locations level by researching tech in the Adventure (Kingdom) or Domination (Empire) technology tree. There you will find several techs that increase not only your quest and notable locations level, but also techs that provide you with more resource tiles in the world (see question 3.7).
!!! Beware that the more your are advancing in this tree the stronger and more numerous the monsters become that roam the world. !!!
3.7 What are the benefits for each tech in the Adventure (Kingdom) and Domination (Empire) technology tree?
The techs in both trees have a huge impact on the interactivity of your sovereign with the world and the allocation of resource tiles. You can find a detailed and constantly updated overview over the exact benefits here:
https://forums.elementalgame.com/393211
(thanks to user: Dereliction)
bitteschön 
