In 1989, the opening of 53,000-seat SkyDome, home to the Toronto Blue Jays baseball team and the Toronto Argonauts football team, was a gala event. In 1992, SkyDome became the first Canadian stadium to play host to the World Series, and the Blue Jays won the championship for the first of two consecutive years. The stadium represents an engineering feat, featuring the world's first fully retractable roof, which spans more than 3 hectares (8 acres), and a gigantic video scoreboard. It is so large that a 31-story building would fit inside the complex when the roof is closed.