Twickenham
Wembley Stadium
Post Fiji Stadium
Acadia national park
London Irish Rugby Club, Madejski Stadium
There is no national rugby stadium. Nowadays, Argentina is using VELEZ SARSFIELD stadium for their international test matches.
Recreation Ground AKA ' The Rec'
The national stadium is Estádio do Jamor, and the largest stadium is Estádio da Luz (Benfica's home)
Each New Zealand city has its own rugby stadium and the NZ Rugby Union doesn't have an official stadium of its own, but the premier New Zealand stadium is probably Eden Park in Auckland as Auckland has the largest population base and is where the World Cup final was held in 1987 and where the World Cup final will be held in 2011.
for which country?
National Stadium (aka the Bird's Nest)
There is no special national football stadium in germany. The stadiums/cities for games of the national team change.
The kangaroos.