What is a world dungeon?
World dungeons, which are grander in scale than places of interest, are designed for more epic encounters. They come in both five-person and raid varieties. The raid dungeons are designed for raids of specific sizes – 10, 15, 20, 25, or 40 players. Some examples of world dungeons in Azeroth include Stratholme, Blackwing Lair, Blackrock Spire, Dire Maul, and Zul’Gurub.