The National Stadium (Bird's Nest) is located in the southern part of the Beijing Olympic Park, the main stadium for the 2008 Beijing Olympic games. The total project covers an area of 21 hectares, the audience seating for 91000. They held the opening and closing ceremonies, the track and field competitions, and the football finals of the Olympic Games, paralympics. After the Olympic Games, it became a large professional place for the citizens of Beijing to participate in sports activities and enjoy sports and entertainment, and became a landmark sports architecture and Olympic heritage.
Started construction in December 24, 2003, completed in March 2008, the total cost of 2 billion 267 million yuan. As a national landmark, the main stadium of the 2008 Olympic Games, the national stadium structure features are very significant. The stadium is a super sports building and a large stadium. The design time of the main structure is 100 years, the fire resistance rating is level 1, the seismic fortification intensity is 8 degrees, and the waterproof grade of underground works is 1.