Tirethas is a major city on Ispar. It is known as the City of Lore, because of its great libraries. Tirethas is the center of the map of Ispar, located at 0.0N, 0.0E. It was the capital of the Roulean Empire, and was conquered by the Viamontians and Gharu'ndim.
It can be compared to the real world ancient city of Alexandria.