The filled pool and the air bubbles on the roof are an integrated whole. (Photo credit: Xinhuanet)

The interior construction and decoration of the National Aquatics Center, dubbed the "Water Cube," are nearly complete, with the pool filled with water on January 10, 2008.

The spectacular venue will make its official debut in the China Swimming Open, the "Good Luck Beijing" swimming event from January 31 to February 5.

The diving platforms in the National Aquatics Center (Photo credit: Xinhuanet)

A worker cleans the seats in audience section of the National Aquatics Center on January 9, 2008. (Photo credit: Xinhuanet)