Suggestions for Vecna's Tower in the center of Pandaemonium
I'm not sure if this is the right place to post this or not (I was thinking in the requests section, but I don't want anyone to make this for me, just to offer suggestions). With that out of the way, I'm going to be starting to design Vecna's secret tower in the center of the plane of Pandaemonium, and I was looking for suggestions for fantastic architecture/building ideas to include in the tower. I haven't designed anything this EPIC - pun intended :) - before, and thought perhaps the veterans would have some ideas that they may have use in planar buildings before. Thanks in advance, and again, sorry if this is the wrong place to put this.