Shattrath City, meaning "City of Light," is a large hub and sanctuary city in Outland. A former naaru temple, it is now inhabited by several factions. The center is run by the Sha'tar, who worship the spiritual being A'dal. The Aldor and the Scryers are two factions working with Shattrath against the Burning Legion, but feud with each other. The Aldor are a draenic priesthood working with the Sha'tar, while the Scyrers are a group of formerly-hostile blood elves that recently offered to aid Shattrath.
The Lower City is its own faction--it is comprised of war-torn refugees of all races. Profession trainers and vendors with unique recipes are located down here, as well as the World's End Tavern with a variety of colorful NPCs.