The most interesting thing to me was their personal museum, which will include things such as the Emmy award that the South Park episode "Make Love Not Warcraft" won, and a bottle of Chardonnay from the debut night of Warcraft III. I'm sure that in no time at all, this museum is going to be packed full of cool things.
This new 240,000 square foot complex also includes a theater, a gaming room, basketball courts, a gym, and a Warcraft-themed cafeteria. Every ounce of my nerdhood longs for an opportunity to take a tour of this place. In comparison, their old HQ was a wooden shack with a few boards missing. This is a definite step up for Blizzard, and a well deserved one at that.
When you're the biggest(one of?) game company in the world, you need a fly pad to accompany it. Blizzard now has that in spades.
[ Thanks GHN and the OCRegister! ]