Some races of the Warhammer world build their castles from materials other than stone. Wood Elf forts are living structures with huge trees making up the walls and their branches serving as the battlements. In the darkness of the Realm of Chaos, the strongholds of the arrogant champions of the Dark Gods are made from metals such as bronze and brass, or even more exotic materials like glass or smoke. Beastmen carve their crude forts from stone to protect their holy herdstones and Dwarfs hew their strongholds from the very bones of the earth, constructing their battlements and ramparts on top of towering mountain cliffs. No matter what material the fortress is made out of, the following rules apply: