Explore Titan Lore
Blizzard discussed several of the instances that will be coming out in the Wrath of the Lich King (WotLK) this weekend at the Worldwide Invitational in Paris. Byron "Messiah" Mudry was there to cover the event, and has all the details on yet another very cool instance being added in WotLK. This time it's a look at the Halls of Stone in the Titan area of Ulduar.
Being part of the Titan city the zone has a massive scale to it. Everything appears hundreds of feet tall as the pillars stretch up to the ceiling. While it appears huge, it will apparently still play in about an hour. One thing that will help that sense of scale is that you will require a flying mount to enter the zone, hence its 77 level requirement. Level 77 is when you will regain access to flying mounts in WotLK.
You can find out more here: Sneak Peak - The Halls of Stone.