Query: An all-seater stadium is a stadium meant for activity or games.

Relevant passages:
All-seater stadium <=SEP=> An all-seater stadium is a sports stadium in which every spectator has a seat . This is commonplace in association football stadiums in nations such as the United Kingdom , Spain , and the Netherlands . Most association football ( soccer ) , American football stadiums in the United States and Canadian Football League stadiums in Canada are all-seaters , as are most baseball and track and field stadiums in those countries . A stadium that is not an all-seater has areas for attendees holding standing-room only tickets to stand and view the proceedings . Such standing areas were known as terraces in Britain . Stands with only terraces used to dominate the football attendance in the UK . For instance , the South Bank Stand behind the southern goal at Molineux Stadium , Wolverhampton , home of Wolverhampton Wanderers F.C. , had a maximum of 32,000 standing attenders , while the rest of the stadium hosted a little bit less than that ( total maximum attendance was around 59,000 ) .   Some European countries , such as Germany , do not have all-seater stadiums . German fans expressed a preference to stand while watching football , so the country 's grounds have large terraced areas . For instance , Borussia Dortmund 's Westfalenstadion ( commercially known as Signal Iduna Park ) has an all-seated capacity of 65,829 , but during Bundesliga games the attendance limit is set to 81,360 . ( If the general rule `` two standing occupies the same space as one sitting '' applies , then around 15,000 seats are replaced by 30,000 standing attenders at Bundesliga games . )

American football <=SEP=> American football , referred to as football in the United States and Canada , and also known as `` gridiron football '' or simply `` gridiron '' , is a sport played by two teams of eleven players on a rectangular field with goalposts at each end . The offense , the team with control of the oval-shaped football , attempts to advance down the field by running with or passing the ball , while the team without control of the ball , the defense , aims to stop their advance and take control of the ball for themselves . The offense must advance at least ten yards in four downs , or plays , or else they turn over the football to the opposing team ; if they succeed , they are given a new set of four downs . Points are primarily scored by advancing the ball into the opposing team 's end zone for a touchdown or kicking the ball through the opponent 's goalposts for a field goal . The team with the most points at the end of a game wins .   American football evolved in the United States , originating from the sports of association football and rugby football . The first game of American football was played on November 6 , 1869 , between two college teams , Rutgers and Princeton , under rules based on the association football rules of the time . During the latter half of the 1870s , colleges playing association football switched to the Rugby Union code , which allowed carrying the ball . A set of rule changes drawn up from 1880 onward by Walter Camp , the `` Father of American Football '' , established the snap , eleven-player teams , and the concept of downs ; later rule changes legalized the forward pass , created the neutral zone , and specified the size and shape of the football .   American football as a whole is the most popular sport in the United States . Professional football and college football are the most popular forms of the game , with the other major levels being high school and youth football . , nearly 1.1 million high school athletes and 70,000 college athletes play the sport in the United States annually , almost all of them men , with a few exceptions . The National Football League , the most popular American football league , has the highest average attendance of any professional sports league in the world ; its championship game , the Super Bowl , ranks among the most-watched club sporting events in the world , and the league has an annual revenue of around US$ 10 billion .