My favorite castle is Stirling Castle, in Scotland. Historic Scotland has their headquarters there, as they believe is the best castle in Scotland. They have just completed a renovation of the royal suites, which involved hand weaving new tapestries, which took something like 20 person years to accomplish. I used to walk by it on my way to work, and the castle was a friendly companion, marking my way.
However, there are a handful of castles in my photo collection, whose pictures I could be persuaded to share. Please have a look. Collection: Castles