I'm noticing quite alot, other civ's colours showing up right in the way. Almost always on resources. But these blocks are too small to have cities in them, sometimes only two or three tiles long. Can anyone explain this, I have written in before to ask, but the response was that it was a city, only I couldn't see it due to espionage points. This time I have included a couple of screen shots. I would like to know how, so I can do it myself.