Apart from Synthesis Design + Architecture's (SDA) solar pavilion of course, because that's most definitely a work of art.
It's called the Pure Tension Pavilion, the result of the "Switch to Pure Volvo" competition launched by Volvo Car Italia and organized by international architecture magazine The Plan.
The brief was to construct a temporary pavilion that expressed "a strong and creative identity" to showcase the Volvo V60 Plug-In Hybrid--the world's first diesel plug-in hybrid production car--at open-air fairs and presentations.
SDA's design uses a high density polyethylene (HDPE) mesh skin with integrated photovoltaic panels, stretched over a web of carbon fiber rods. The result is a construction straight out of science fiction and a work of beautiful sculpture, but one with practical attributes too.