Architecture plays a role in how we perceive the world. As does art. You could say that public art and architecture set the stage. Or maybe it's a table. Or maybe an altar. Architectural exhibits in Millennium Park designed by London-based Zaha Hadid and Amsterdam-based Ben van Berkel of UNStudio emphasize the importance of boldly imagining a better future for all. Both are intended to echo the audacity of the 1909 Burnham Plan, which proclaimed, “What we as a people decide to do in the public interest we can and surely will bring to pass.” Architecture for the rich is booming business, especially in Asia. Evidently wealth has been flowing to Asia for years. Tucked away from the noisy, choked traffic on Sukhumvit Road near Ekamai, Mr Bensley's office is flooded with work commissioned by kings, governments and tycoons. He says there has been no slowdown since he set up shop here [Thailand] 20 years ago. From the 1997 Asian crisis through to the collapse of Wall Street last