The Citadel Walls is a Fence introduced in the 12.0.0 update.
It appears as a stone brick wall with a rope indicating blue flags. Some of the stone bricks are white. There are 2 thick columns, with one providing a torch, and both torches are placed symmetrically. The top of each column is an orange rooftop.
It is used to tremendously increase the effectiveness of Wear.
- Despite it being categorized as "buildings", it is actually used to cover the area of a building.
- It looks like the full upgrade of the Stone Walls and the successor of the Fortress Towers.