My question is as the title put it. I would like to know how large and thick of a wall we could currently construct. Given we have no limitations in money or materials. Bonus if itsit's actually sturdy though I don't have much hope of that in this regard. Rooms and hallways are allowed as long as they do not compromise stability and functionality of the wall. Keeping things out is its functional reason for being of course.
I searched for other questions akin for this. Didn't find anything exactly to my needs. As such I'm asking.