"the largest expo the world has ever seen"

The World Expo also known as the World’s Fair is an event that has been around for over 150 years. It is sort of like the Olympic Games, except that instead of Sports, it’s about Science, Technology, Culture and Economics.
The Shanghai 2010 World Expo is expected to be the largest World Expo event ever held.

The goal of the Expo is to exchange ideas, promote each country's achievements and developments in improving quality of life, and to foster relations among countries.

It will be a festive meeting of diverse cultures with the country exhibits being the highlight of Expo, each showcasing their own ways of life. Countries all over the world face different challenges: environmental, social, economic, etc. Here at the Expo, is the chance to bring and share their innovative solutions. You will be able to see how people live around the world, how they deal with these challenges, all in one place.

Below: a Shanghai World Expo Building.