北京鸟巢, officially known as the National Stadium, is a famous architectural landmark located in Beijing, China. It was designed by the Swiss architecture firm Herzog & de Meuron and constructed for the 2008 Summer Olympics. The stadium is known for its unique nest-like structure, made of steel and glass, which symbolizes the harmony between nature and human creativity. The Bird's Nest has a seating capacity of around 80,000 spectators and has hosted various events, including the Olympic Games and concerts. It is surrounded by the Olympic Green, a large park that features other Olympic venues and recreational areas, making it a popular destination for both tourists and locals.