The Estadio Nacional Julio Martínez Prádanos is the national stadium of Chile. It is located in Ñuñoa. It is the largest stadium in Chile with an official capacity of 49,000, and is part of a 62 ha sporting complex which also features tennis courts, an aquatics center, a modern gymnasium, a velodrome, a BMX circuit, and an assistant ground/warmup athletics track. Construction began in February 1937 and the stadium was inaugurated on December 3, 1938.