Bees! said in one of the new housing threads that we are probably not going to have access to the world map from inside our houses. I assume he means by clicking on the map that's at the top of the game window.
But what if we could buy an Atlas! It would let you look at small version of the world map. Maybe owning an Atlas would also let you make notations on the map -- draw the hidden routes you've found, circle your favorite mining street, leave a little note about the cool hidden spot you found that one time. It would be really neat to be able to customize the big world map.