The so-called “water cube” is an arena in Beijing where the swimming competitions held for the 2008 Games. It was designed by the firm PTW Architects, CSCEC International Design and Arup structural engineers Arup. Authentic engineering work thanks to a unique plastic membranes polyhedra. This kind of transparent cushions, the hand of any curious want to check its soft texture, allow this architectural space this 90 percent illuminated by sunlight, and get to the pool water is reflected by the interior of whole structure.