WesterosCraft is an amazing virtual world/Minecraft server where thousands of fans are re-creating the continent of Westeros block by block.

From the Wikia Page:

At present, we have completed about 60% of Westeros and it had taken us about two years to get here. Our pace increases with our swelling number of builders and more and more skilled coders, but we estimate it will still be another year before we have a functioning roleplaying game.

[WesterosCraft | WesterosCraft on Youtube]