Photo taken on Feb. 23, 2008 shows the outer view of the National Aquatics Center at night in Beijing, capital of China. The National Aquatics Center, nicknamed the "Water Cube", covered with more than 3,000 Ethylene Tetrafluoroethylene (ETFE) air cushions, is not only the first of its kind in China, but also the world's largest and most complex ETFE project. It was built in accordance with a water-saving design concept, a gigantic green architectural wonder.

Photo taken on May 16, 2008 shows the swimming lanes of the National Aquatics Center in Beijing, capital of China. The National Aquatics Center, nicknamed the "Water Cube", covered with more than 3,000 Ethylene Tetrafluoroethylene (ETFE) air cushions, is not only the first of its kind in China, but also the world's largest and most complex ETFE project. It was built in accordance with a water-saving design concept, a gigantic green architectural wonder.

Photo taken on May 15, 2008 shows the ceiling of the National Aquatics Center in Beijing, capital of China. The National Aquatics Center, nicknamed the "Water Cube", covered with more than 3,000 Ethylene Tetrafluoroethylene (ETFE) air cushions, is not only the first of its kind in China, but also the world's largest and most complex ETFE project. It was built in accordance with a water-saving design concept, a gigantic green architectural wonder.