Crypts of Winterfell: Theories & Analysis from ‘Game of Thrones’

The Crypts of Winterfell are highly mysterious. For one thing, they're much larger than they really should be. And they likely hold some deep, dark secrets. We're going to explore some major theories about the crypts of Winterfell and look at some of the biggest theories surrounding their origins. Click through the gallery to see photos and theories about the crypts from 'Game of Thrones.' Note, these could contain spoilers if any of the theories are true. We will update this post with more information after Winds of Winter, the Game of Thrones season 6 finale, airs. (HBO)