Beijing is being totally remade. “A city that, until 1990, had no central business district, and little need of it, now has a cluster of glass towers that look like rejects from Singapore or Rotterdam. And these, in turn, are now being replaced and overshadowed by a new crop of taller, slicker towers, the product of the international caravan of architectural gunslingers that has arrived in town to take part in this construction free-fire zone. Rem Koolhaas, Jacques Herzog, Zaha Hadid, Jean Nouvel and Will Alsop are all building, or trying to build here.”