It is a wonderful place built entirely from crystals dredged from the intriguing Crystal Lake. Hot springs beneath the surface of the water keep them very warm; sometimes, when the springs are very active, the water of the lake actually boils. The River of Fire, which feeds the lake, springs from the slopes of the active volcano, Mount Pyre, high among the peaks of neighbouring Mauristatia, and brings strange minerals to the lake. These react with the steaming lake and form crystals, which are mined by the people of Crystal City.
Crystal City is a stop on the Pollua to Royal Lendle trade route that crosses the Old World. As a result, many and varied items from the mundane to the magical can usually be bought here - for a price. Although every day is market day in Crystal City, a canny adventurer will know that once a week on Highday, the worshippers of the gods of commerce in the city will sell items more cheaply than on other days of the week.