"Harrenhal," Tyrion answered without hesitation. "It might need some...no, plenty of restoration, but it's more than large enough and quite central. And its current Lord is Baelish. The King can easily add it and the adjacent lands to the Crownlands and rule from there." He paused, poured himself another cup of wine, and downed it in one go. "Mayhaps this time they can add proper sewers, and the new capital won't stink of shit."