Stadio Olimpico is the home of the Italian national football team, as well as of both local teams A.S. Roma and S.S. Lazio. It was built in 1936 and has a capacity of 81,903. It was the site of the 1960 Summer Olympics, but has also served as the location of the 1987 World Athletics Championships and the 1990 FIFA World Cup. It will also be hosting the UEFA Champions League Final in 2009.
You can see another view of the stadium here: