An old fire and lava temple with its city, in between obsidian and volcanic rocs

An old fire and lava temple with its city, in between obsidian and volcanic rocs. Red and blue flames and lava, adorn the summerian buildings. Rivers and waterfalls of fire and lava flow between the buildings. There is a fire forest as well, with flame-plants. A fairylike aesthetic. A staircase at the front of the biggest building. Tons of houses and smaller temples around.