Walt Disney Imagineering was what I considered the Super Bowl of Jobs-- I was hired out of Cal Arts to essentailly sit in a room and come up with theme park narratives, rides, and show elements.  It was heaven.

I worked on Disney's California Adventure, Animal Kingdom, EPCOT, and a variety of blue-sky projects.  Perhaps nothing is as satisfying as coming up with a napkin sketch idea, creating concept boards to pitch the idea, and then seeing the final physical structure in place (albeit three years down the road).