The Angel fish

 Beijing National Stadium Beijing National Stadium

, officially known as the National Stadium, also known as the Bird's Nest, was designed for use in the 2008 Summer Olympics and Paralympic Games. 

Construction of the National Stadium began on December 24, 2003, and the Beijing National Stadium was officially inaugurated on June 28, 2008 at a cost of about US $ 423 million. 

 Beijing National Stadium (BNS) was a joint project of the architects Jack Herzog and Pierre de Meuron from Herzog and de Meuron.

 The playground consists of two independent structures and an external steel frame around it, in the form of a bird's nest, which are steel external structures that are intertwined with each other as if it were a bird's nest. 

 But what is the symbolism of the name "Bird's Nest"? To answer, we say that when birds take refuge in their nests, they symbolize goodness, peace and a sense of security, and they are the meanings that China wants to convey to the world through this wonderful construction mathematical masterpiece called "Bird's Nest". "Bird's Nest" consists of one ground floor, 7 upper floors above the ground, with a width of 280 meters and a length of 333 meters, and thus it is considered the largest sports facility currently in China. 

It can also withstand an earthquake of 8 degrees on the Bird's Nest scale and an aerial view of Richter  As for the eastern and western stands of the stadium, higher than the north and south stands, pipes are used throughout and around the stadium and placed under the playing surface to collect heat in the winter to warm the stadium and cool in the summer to cool the stadium  The stadium capacity was originally 100,000 fans; Of these, 9,000 seats were removed during the design simplification, to become 91,000, then 11,000 seats were removed as "temporary seats" after the 2008 Olympic Games, bringing the stadium capacity to 80,000.