The world had its first look at Jacques Herzog and Pierre de Meuron's nearly $500 million Beijing Olympic stadium, known as the "Bird's Nest" for its curved and latticed steel structure. Even though the new building stands 230-feet high, it is barely visible from half a mile away, due to Beijing's dense pollution. Chinese artist Ai Weiwei, who consulted on the project, has criticized the work, calling it a "fake smile" intended to obscure China's political problems. Herzog has said that he is not sure whether his firm will attend the games, but assured reporters that the decision was not political. In a related story, the architects are seeking public feedback on their Miami Art Museum design.