https://news.blizzard.com/en-us/article/23897173/wrath-of-the-lich-king-classic-ulduar-now-live
Wrath of the Lich King Classic: Ulduar Now Live! — World of Warcraft — Blizzard News
Join Brann Bronzebeard’s expedition and explore Ulduar in the next content phase of Wrath of the Lich King Classic.
the lich kingworld warcraftwrathclassiculduar