When you watch an episode of Game of Thrones the visual effects don’t really leap out at you or appear too obvious, except for the intro and the dragons of course, but there are a surprisingly large number of visual effects peppered throughout the show, and without those visual effects Game of Thrones just wouldn't look right.
This eye popping video from Mackevision, one of the VFX studios responsible for GoT's signature look, is not only incredible to watch and full of visual easter eggs, it will change the way you watch Game of Thrones, making you more aware of how flat the show would look without all the vfx.
As someone who has watched all four season of Game of Thrones I didn't really see anything in this video I would consider a spoiler, but if you haven't watched season 4 yet, and you're really afraid of having it spoiled for you, it's probably best you don't watch this video until you''re all caught up!
-Via io9