By now, we know that Game of Thrones uses a heavy VFX hand when it comes to building the world of Westeros but it's still amazing how real their visual effects can make it look. That's because pretty much everything is fake. Seriously. Anything far off in the distance or people standing around or flags waving have all been added in digitally.
The only thing you can trust to not be digitally altered in Game of Thrones is the actor's faces (well actually you can't even trust that). Watch Macklevision's VFX reel of Game of Thrones Season 4 below to see how fake is the new real.
Obviously, season 4 spoilers lie within.