The 70,000 m² National Aquatics Center in Beijing by CSCE, PTW, CCDI and Arup had become well-known as the Water Cube long before the Olympics. It forms the heart of the Olympic Park together with the Olympic Stadium opposite. The façade of the Water Cube is clad with 3,000 different-sized, blue-tinted air cushions made of ETFE. Their arrangement is modelled on the natural appearance of soap bubbles and thus presents water in a different state of aggregation.
In the design of the Water Cube, it was important to lend expression to the concept of water, ensure integration in the urban environment, demonstrate traditional Chinese architecture and make use of the latest technologies and materials. The Water Cube is a truly outstanding and unparalleled structure.