Our newly sculpted and improved Diagonal Walls can build different-sized diagonal passages or be swapped for corners to create a different look to your rooms. Use the Corner Door Wall to connect diagonal passages to your rooms, or to connect adjacent rooms. Fit a Backfill piece against the back of the wall to create a square 2x2 footprint for building interconnected rooms. Includes two new sculpts: the Classic Diagonal Wall and the Basic Dungeon Corner Pillar. Sculpted in the Classic Dungeon style with plain stone walls.