As an aside/example, here is an entire fortress fortified by Vauban in 1692, a pillar of French royal power for centuries, practically a small village behind th

As an aside/example, here is an entire fortress fortified by Vauban in 1692, a pillar of French royal power for centuries, practically a small village behind the walls, going for only 2.6m EUR: http://www.patrice-besse.com/chateaux-a-vendre/paca/chateau-citadelle-montagne-a-vendre/ http://www.patrice-besse.com/chateaux-a-vendre/paca/chateau-... Although my favorite is: http://www.patrice-besse.com/chateaux-a-vendre/bourgogne/vente-chateau-de-la-rochepot/ http://www.patrice-besse.com/chateaux-a-vendre/bourgogne/ven... - for only 3m EUR you get a moat with lifting bridge, gargoyles, and some real towers to shoot your crossbows from. You never know when the peasants might revolt!