Water Cube held the Olympic swimming event in 2008 Beijng Olympic. It is located in the south-western part of Olympic Green's Central Zone, the National Aquatic Center. For the first look people may think that Water Cube is just a simple cube made of blue glass. However, the glasses have bubble shape. When the light is on, it looks like is flowing. Consider the location it gives people an impression of swimming. That is not all. Inside view is more extraordinary. Because of glasses are transparent, the image of the wall and roof are reflected throughout the building. Feels like walking in the water when people in it.