Ancient Castle 3D Screensaver

Type Ancient Castle 3D Screensaver invites you inside to walk through and outside majestic stronghold once belonging to a powerful medieval lord. These walls remember the long days of sieges and furious attacks. But they also remember days of feasts, tournaments and chivalry. Knights from all over considered it to a great honor to be invited here. The other guests were the elves, gnomes and other creatures. Yes, this is one of the castles you read in one very popular fantasy book. Try to guess which one ?