Michigan's Stadium is the biggest, holding 111,000+. That site must be Penn State Fans.
, nicknamed The Big House , is the football stadium for the University of Michigan in Ann Arbor, Michigan. UM Stadium has often been called "The Carnegie Hall of all Sports" and is also known as the House that Yost built.[citation needed] It was built in 1927, at a cost of $950,000 and had an original capacity of 72,000. Prior to playing football at the stadium, the Wolverines played on Ferry Field. Today, Michigan Stadium has an official capacity of 107,501[1], however due to the '08 renovations the capacity temporarily dropped to 106,201. The football game attendance often exceeds 111,000 when band members, stadium staff, and others are added. The largest crowd in NCAA college football history was 112,118 on November 22, 2003 for a game against Ohio State.[2]
Currently the stadium lists as the second largest in the United States, behind Penn State's Beaver Stadium, due to a reduction of 1,300 seats because of a lawsuit on behalf of disabled patrons, ruled in March 2008. The former official capacity of 107,501 made The Big House the largest stadium in the United States up until the recent changes.
http://en.wikipedia.org/wiki/Michigan_Stadium