The lobby of the building where I work is really restrained, but if you turn to the right or left you'll see banks of elevators with some incredible detail. One of my tour books says that the design is intended to be the Tree of Life. Sounds reasonable.
But if you really want to see an incredible Art Deco lobby, go one building south to One N. LaSalle. More on that building in the next entry.
On another note, Felix is standing! Well, not all the time. And usually when he realizes that he's standing he'll plop to the ground immediately. He also has about 4 teeth coming in, and a minor cold. Tough month for Felix.