The House That Dragons Built S2 E3 - S0.E40

Director Geeta Vasant Patel, production designer Jim Clay, actor Matt Smith (Daemon Targaryen), and more reflect on the scale of the Harrenhal castle set, the introduction and design of Baela’s (Bethany Antonia) dragon, Moondancer, and the creation of Aegon's (Tom Glynn-Carney) ancient Valyrian armor.