In this episode we are treated to some lovely exterior shots of Riverrun, the ancestral home of House Tully, the Lords Paramount of the Trident. Riverrun is essentially a magical fairytale castle, complete with a great many two-toned turrets, moat, drawbridge, et cetera. We had technically already visited the castle back in season two or something, but who can even remember what anything looked liked back then? Riverrun is basically a brand new castle for us, and it would be a real shame if the Lannisters destroyed it immediately. Let us hope for a lot more Monty Python and the Holy Grail-esque bickering over the ramparts in episodes to come.
Meanwhile, Jon, Sansa, and Davos have embarked on an architectural tour of some of the lesser castles of the North.
Mormont Keep, the seat of House Mormont on Bear Island, is quaint and adorable and may only consist of one room. Like everywhere else in Westeros, it is exceedingly poorly lit. (You have candles, Mormonts! They're right there! Light the candles!)
Deepwood Motte, the seat of House Glover located in the northwestern wolfswood, is a more impressive castle, but you can also tell it's a real piece of garbage. Whoever the current head of the Glovers is receives Jon and company in the mud in front of his stoop, and while normally we would peeved that we don't get to see the inside of a castle, in this instance we're fine with it. Look at how dirty the Glovers' banners are. They just don't care. The interiors are probably completely bare with two or three wooden chairs sitting around.
Also, what exactly were these people supposed to be building? Guess we'll never find out.