Hall of Unknown. Just a hall can turn to labyrinth just for you with filled of bookcase of books of knowledge of unknown of unknown languages of your ancestors but beware your not alone in this journey. Just my Castle but it's not the best but I can call it my home I will post someday of my work I hope it doesn't spread madness.
I hate to be that guy, and I'm pretty sure it has been said before, but I can't find the post anywhere. So I have to ask, from which mod did those tarp/cover objects come? (Unless I'm completely mistaken and it has actually never been said.)
I'm pretty sure they're in the Elithian Races mod as part of the Avikan building set. That said I mostly play around with their tiles not their decorations so I'm not 100% on that.
I see I finally know now what a house means..."It's something where you live at no matter what it looks like"... MY MIND IS FINALLY BLOWNN
The tarps are definitely from the Elithian Races Mod. One of the Avikan tarps. avikanoutpostlargesheet is the code