The Expo, which runs through October 31 of this year, is the most expensive fair of its kind in the history of expositions. its theme is "Better City, Better Life."
The Expo grounds cover about two square miles along both sides of the Huangpua River, as shown here. (The site is about twice the size of Monaco and is the largest site ever for a world's fair.) About 17 million visitors have been through the Expo as of the date of this slideshow.
Expo Map: Courtesy of Motorola