I read a very special book a few years back. We follow a boy who lives in a world where, if one moves far enough in a direction, that person gets distended and changed in size.
The boy works on laying tracks for the train, on which his city is. The city has to continually keep moving or it also will get squashed.
It's like a world like if one end is pinched and then dragged out like a piece of rubber string or bubble gum.
The book is not older than 10 years I think.
Hope I was clear enough...