The designs may not all be easily intuitive, but they were all conceived in intimate connection to their theme. Think about how difficult it is to communicate something as nebulous as imagination in a concrete, structurally sound but still beautiful building - especially in 1982. Having that pavilion be realized in pyramidic glass prisms, in my opinion, was a brilliant way of manifesting a metaphor for imagination in a form that was solid, architectural, and fitting with the styles developed for the Future World pavilions. It frames the building as a source of imagination and not simply a result of it - the mound from which the world is formed, a prism through which ideas refract and expand and become new. And then it was also surrounded by its imaginative details - the topiaries, the upside-down waterfall, the laminar fountains - which made the place feel active and alive, as if "imaginations" were filtering through the building at all times into this fertile ground for creativity.