Watch a montage of visual effects for "Game of Thrones'" Season 4

This reel of visual effects by Mackevision proves that some of the biggest stars of "Game of Thrones" are the special effects team. In the nearly 5-minute video, you'll see how majestic landscapes were turned into crowded cityscapes and witness the construction of the show's epic battles. Sadly, there's no visual effect that will bring Price Oberyn back to life -- for that, you'll just have to request an alternate ending.