Ladies and Gentlemen of Westside Gamers, my friend and I played Pillars of the Earth for the first time last night. We placed our master builders (architects) in the Wald, Gravel Pit, and Stone Quarry as part of our turns. Was that a correct placement? My friend didn't think we could use these parts of the board at all and had to pay expensive gold to acquire the necessary products. Which was the correct interpretation?