Fire Temples are places of worship for Zoroastrians. Fire and water are considered highly pure elements and therefore very valuable. One day I'd like to take a trip to India to visit some of the fire temples there -- they have about 150, compared to only 27 in the rest of the world. There's also a Fire Temple in one of the Zelda games. There's a [color version of Temple of Fire](/b/temple-of-fire) if you want some inspiration.