I just encountered a quirk I haven't seen reported yet. I traded maps with the Aztecs, then moved the cursor into the newly revealed territory to explore a little. There was one Aztec city and one barbarian city. When I moved my cursor over the barbarian city, the window under the world map showed a barbarian archer. When I moved the cursor over the Aztec city, it showed an Aztec warrior. I'm trying to play an honest game, so I didn't go into cheat mode to double check, but I'll bet you a doughnut that the cursor was showing me the troops present in these cities, as if they had been my own cities.