I have a series of dreams that happen in my town, whose geography in the dreams is as I naively imagined it as a child. The map of the dream town is an exact circle. The bus route from my home (my parents' home) to my school is a straight line (in reality it is more like a spiral). As a consequence, some places exist in my dream map that do not correspond to anything in reality. Sometimes I wake up with a feeling that it is important to go to those places in real life, because something important that I forgot is there.
Across a large street from my parents' home, there are some trees that kinda look like a beginning of a forest. In reality those are just a few densely growing trees, followed by more streets and houses. As a small child I didn't know, because we rarely walked in that direction, so in my dreams, there was a forest. Now I know what is actually there, and have walked there many times. But in the dream world, there still is a forest.
The dream map refuses to update and keeps the misconceptions of my childhood. Of course, during the dreams, it is a real map containing places that I merely "forgot" and "should visit again".