Photo Diary By Patrick Zachmann
China opens largest World's Fair
Amid tight security and complaints from human rights groups, the 2010 Shanghai World Expo opened to swarms of visitors queuing to see displays from 189 nations.
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Preparing for the fair
A global showcase of architecture, science and technology runs May 1 to Oct. 31 in China's financial capital. Tens of millions of people are expected to visit the international exposition in Shanghai.
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History of the Fair
A look at previous international expos in New York, Seattle, Montreal, Knoxville, New Orleans and South Korea.
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Letter from China
Costs and benefits
As China's largest city hosts the most expensive world's fair in history, the 2008 Beijing Olympics provides both a model and a cautionary tale. Perhaps mindful of the fact that many of the Beijing Olympic facilities have fallen into disuse, authorities in Shanghai have decided that almost all the World Expo pavilions will be dismantled immediately after the fair.
About the World's Fair
The first world's fair took place in London in 1851 and the expos allow people to explore the world outside of their everyday experience —- outside cultures, new scientific advancements, and new inventions.
