Kuldotha
Kuldotha, the Great Furnace, is a massive furnace-city once used by the goblins of Mirrodin for the creation of utilities and the practice of their religion. Molten metal is produced in the fires of Kuldotha. It was believed by the goblins that by sacrificing all metals and the bodies of the dead into the furnace, the objects and souls would be returned to the Steel Mother, also keeping the Furnace running for her.