Three Gorges Dam

In China is having it's grand opening on Saturday. This particular article isn't all that interesting, but I read "A River at the Center of the World: A Journey up the Yangtze, and back in Chinese Time" that was a really good book. By Simon Winchester. Anywho, check the stats:

It has replaced Brazil's Itaipu Dam as the world's largest hydroelectric and flood-control installation, Chinese officials said, with the strength to hold back more water than Lake Superior and power 26 generators to churn out 85 billion kilowatt-hours of electricity a year when the final touches are completed in 2008. Hoover Dam on the Nevada-Arizona border, by comparison, generates more than 4 billion kilowatt-hours a year.

This is one massive dam.