The stadium used for the Opening Ceremony, the athletics and the closing ceremony could accommodate up to 80,000 people.
At least 14 people died during the work on the facilities. Most of these people were not from Greece.
Athens 2004 marked the first time since the 1996 Summer Olympics that all countries with a National Olympic Committee were in attendance, and also saw the return of the Olympic Games to the city where they began.
Australia became the first country in Olympic history to win more gold medals (17) immediately after hosting the Olympics in Sydney 2000 where they won 16 gold medals.
For the first time, the wrestling category featured women's wrestling and in the fencing competition women competed in the sabre.