Question: What is a multi-purpose stadium used mostly for American football in St. Louis, that held The 1996 Dr Pepper Big 12 Championship Game?

Context paragraphs:
1996 Big 12 Championship Game: The 1996 Dr Pepper Big 12 Championship Game was held on December 7, 1996, at The Dome at America's Center, then known as Trans World Dome, in St. Louis, Missouri.  The divisional winners from the Big 12 Conference squared off in the 1st edition of the game.  The Texas Longhorns represented the South Division and the Nebraska Cornhuskers represented the North Division.  Texas won the contest 37–27, keyed by a daring 4th down conversion from their own 28-yard line with slightly more than 2 minutes left in the 4th quarter when the score was 30–27 in their favor.

2008 Big 12 Championship Game: The 2008 Dr. Pepper Big 12 Championship Game was held on December 6, 2008 at Arrowhead Stadium in Kansas City, Missouri, and pitted two of the divisional winners from the Big 12 Conference: the Missouri Tigers, winner of the North division against the Oklahoma Sooners, co-champion of the South division.  Kickoff was scheduled for 8PM EST/5pm PST, and was televised by ABC as part of its "Saturday Night Football" package.

2005 Big 12 Championship Game: The 2005 Dr. Pepper Big 12 Championship Game was held at Reliant Stadium on December 3, 2005.  The game saw the Big 12 South champions Texas Longhorns take on the Colorado Buffaloes, winners of the Big 12 North.  Texas, undefeated and at #2 in the BCS standings, was looking to travel to the national championship.

1998 Big 12 Championship Game: The 1998 Big 12 Championship Game was played on December 5, 1998, at The Trans World Dome in St. Louis, Missouri, United States.  The game determined the 1998 football champion of the Big 12 Conference.  The Texas A&M Aggies, winners of the South Division of the Big 12, narrowly beat the Kansas State Wildcats, who won the North division, by a score of 36–33 in double overtime.  This was the first time the two teams met in the Big 12 Championship Game.  Texas A&M would not win the South Division again until the 2010 season, when they shared it with Oklahoma and Oklahoma State.  Kansas State went on to win the North in 2000 and 2003, when they also beat Oklahoma to capture their first conference title since 1934.

The Dome at America's Center: The Dome at America's Center, or The Dome, is a multi-purpose stadium used mostly for American football in St. Louis, Missouri, United States.  It primarily served as the home of the St. Louis Rams from 1995 until 2015 when the Rams relocated back to Los Angeles in 2016.  The stadium, previously known as the Trans World Dome from 1995 to 2001, and then as the Edward Jones Dome from 2002 to 2016, was constructed largely to lure an NFL team back to St. Louis and to serve as a convention center.

2010 Big 12 Championship Game: The 2010 Big 12 Championship Game was played at 7:00 p.m. on Saturday, December 4, 2010, at AT&T Stadium, then known as Cowboys Stadium, in Arlington, Texas to determine the 2010 football champion of the Big 12 Conference.  At that time, it was the final championship game for the conference as two members of the Big 12 had announced their intentions to leave the conference.  The South Division was represented by Oklahoma and the North Division was represented by Nebraska.  Oklahoma defeated Nebraska 23-20 to win the final Big 12 Championship and claim their seventh Big 12 Title.  It was Oklahoma's eighth appearance in the game.

2009 Big 12 Championship Game: The 2009 Dr Pepper Big 12 Championship Game was held on December 5, 2009 at Cowboys Stadium in Arlington, Texas.  The divisional winners from the Big 12 Conference squared off in the 14th edition of the game.  The Texas Longhorns represented the South Division and the Nebraska Cornhuskers represented the North.  Texas won 13–12 on a last second field goal by placekicker Hunter Lawrence.

2003 Big 12 Championship Game: The 2003 Big 12 Football Championship Game was played on December 6, 2003 in Arrowhead Stadium in Kansas City, Missouri.  The game determined the 2003 football champion of the Big 12 Conference.  The Oklahoma Sooners, winners of the South division of the Big 12, were upset by the Kansas State Wildcats, who won the North division, by a score of 35–7.  This was the second time the two teams met in the Big 12 Championship Game.  The first was the 2000 Big 12 Championship Game, a game in which Oklahoma won 27-24.

2004 Big 12 Championship Game: The 2004 Dr Pepper Big 12 Football Championship Game was played on December 4, 2004 in Arrowhead Stadium in Kansas City, Missouri.  The game determined the 2004 football champions of the Big 12 Conference.  The #2 Oklahoma Sooners defeated the Colorado Buffaloes 42-3.

2006 Big 12 Championship Game: The 2006 Dr. Pepper Big 12 Championship Game was held on December 2, 2006 at Arrowhead Stadium in Kansas City, Missouri, and pit the divisional winners from the Big 12 Conference: the Nebraska Cornhuskers, winner of the North division against the Oklahoma Sooners, winner of the South division.  The Sooners defeated the Cornhuskers, 21-7.  This was the first time the two teams had ever met in the Big 12 conference championship game.

Supporting paragraphs: 1996 Big 12 Championship Game The Dome at America's Center
Answer: The Dome at America's Center