well, we have hijacked this thread
there's a lot of cities, towns, villages and ruins in italy that can be a good example about how they were fortified and how the population raises around castles, keeps and rivers.
From the most famous towns, like
Siena - Wikipedia, the free encyclopedia (another town that may shows how a city can be "poor" or "rich" depending on trading routes) from the thousands of small villages between Rome and L'Aquila (they all are on top of the mountains, all for defending purposes) there's a lot of source of inspiration for the RPG world builders. Sure, there's not so much Magic in Italy
I'm not an expert, but I'm pretty sure that each european can show good example about this: after all the Roman Pax was established using the Gladius, and the Northern tribes was not really peaceful even before the Romans.
(This argument can lead to infinite forks: about the Gladius sword, i still have to find, in D&D or any other fantasy RPG something similar to what we've seen in reality. While the "celtic" swords are more sexy, they were used by tall ppl, while the romans - small ppl, 1.50m average - adopted a shorter sword...)
Wraith, glad you liked it
Knightfall, sorry for hijacking.