Visitors to the Ahmanson building may notice an unusual sight—a bright green bike lying on the floor near plaza doors. It's apparent at once that it both is and isn't a bicycle. It's a work of art by Robin Rhode, cast in Sunlight soap, a popular brand in his native South Africa. I watched Robin install the piece while he was here working with curator Leslie Jones. He was patient and engaging as visitor after visitor stopped to ask him about it. Here's what he said: