Dungeons need walls, to separate the ceiling from the floor, and this list has 10 different walls that can be added. These could be used as a source of potential curiosities or hazards, or perhaps as potential adventure hooks. Alternatively, they may simply be used as walls to flesh out an otherwise uninteresting room and, perhaps, pose a puzzle that lacks a true answer.

1. A huge fossil of what looks to be an ammonite sticks slightly out of the wall, the rock cut back slightly to partially expose the fossil, and the exposed surfaces highly polished.
2. Curved tiles made from terracotta cover the wall, forming a wavy pattern. Each tile has a small face moulded into it, and each face is identifiable as being an individual.
3. The wall appears to be made of circles of glass, in alternating blues and browns. Each circle is approximately 3″ in diameter, and is slightly indented. They have been fixed together with mortar and, if more closely examined, it can be seen that the circles are the bases of glass bottles.
4. The wall is formed from trilithons, which have the openings beneath the stones filled up with roughly shaped stones. These stones, on inspection, look to be menhirs that have been cut into pieces.
5. One-inch-wide strips of copper run vertically and horizontally, forming a woven wall of copper strips.
6. What look like louvred slats of wood running horizontally form the wall. The slats are unusually hard, and prove to be stone if investigated. They cannot be moved from their current position, but a slight draft comes from the gaps between the slats.
7. The wall is made from what look to be thick, black tentacles. The tentacles interlock tightly, but whenever anything living approaches them, they shift and writhe.
8. Three-foot square blocks of stone form the wall. Although each block is tightly fitted, they are made from different materials; granite, marble, sandstone and limestone, and with different types and colours of each individual stone.
9. Rusty iron bars have been vertically mounted, driven into the floor and ceiling, and roughly welded together.
10. Bodies of many different creatures have been used to make the wall. The bodies have been stacked and fitted together, then coated with some sort of thick, clear varnish to preserve them. Those bodies that have faces all appear to be screaming.