Workers wash the dirt off the National Aquatics Center, also called the "Water Cube," Tuesday, April 1, 2008, in Beijing. The building's exterior is sheathed in calledethylene-tetra-fluoro-ethylenea, a Teflon-like plastic membrane. The center will be the venue for swimming and diving events during the 2008 Beijing Olympic Games.
Author: CBS News Staff
Credit: AP Photo/Robert F. Bukaty