One of the two light art pieces in Millennium Park. These two giant towers of glass bricks with embedded little LED lights face each other and apparently in the summer the faces appear on them and periodically water squirts from the mouths of the faces. The faces also move—they're basically video close-ups of different faces. Unfortunately the weather was much too cold for water to be running, so I guess during the winter these two exhibits just sort of make faces at each other and the world.