This is a sketch of the goblin palace the girls are exploring in the filmed campaign--a working palace dungeon (with shades of "Greater Crazy Wizard" dungeon) . It's pretty closely based on an actual historical palace--in order to make sure the rooms have whatever chamber-to-chamber logic one might reasonably expect. Most of these things are in there somewhere. Rooms in the goblin palace generally appear where their analogues are in the real-life model--I believe, for instance, that the fungus room appears where a formal garden in the real palace is.
Gold star for you if you can guess what building I ripped off.