HI, I've finally acquired and crafted everything needed to build the Celestian Observatory, including the recipe for the castle. Do I need a special crafting table to build a castle? The recipe for the the Observatory does not show up in the recipes I have for the housing crafting station. Please help, it has taken me a long time to farm for the celestian shields, find all the reagents, and craft all the other needed items for this castle. Thanks.