The biggest American football stadium is Michigan Stadium (Ann Arbor, MI) --capacity 107,501
Michigan Stadium is the largest college-owned structure of its kind designed solely for (American) football, according to the University of Michigan online media guide.
The "largest attendance" at an American football game was at Michigan Stadium in 2003 versus Ohio State, when 112,118 people were in attendance. That is the National Collegiate Athletic Associaition regular-season record.
I also found this, about baskeball and hockey (both held by USA collegiate games):
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Michigan State University played the "BasketBowl" at Ford Field (Detriot, MI) against the University of Kentucky on December 13, 2003 and drew a world record Basketball crowd of 78,129.
On Oct. 6, 2001, "The Cold War" hockey game between Michigan State University and the University Michigan drew 74,554 fans to Spartan Stadium (East Lansing, MI). Tickets for "The Cold War" were suspended after nine business days.
On February 1, 2009, Super Bowl XLIII was played in Raymond James Stadium in Tampa, FL and the attendance was 70,774. On February 3, 2008, Super Bowl XLII was played in the University of Phoenix stadium in Glendale, AZ and the attendance was 71,101.
1950
67,468 fans witnessed the end of Joe DiMaggio's hitting streak in 1941 in Cleveland. This attendance number was the largest attendance number was a record for a night game.
there were various sizes, the largest having a capacity of 2000.
47,116 is the maximum capacity for a baseball game at Safeco field. During the Seattle Bowl 54,097 people set the maximum attendance record.47,116
On February 1, 2009, Super Bowl XLIII was played in Raymond James Stadium in Tampa, FL and the attendance was 70,774. On February 3, 2008, Super Bowl XLII was played in the University of Phoenix stadium in Glendale, AZ and the attendance was 71,101.
Wrestlemania 23, in Detroit, 2007 The attendance was of 80.103 people
If you mean the highest ever recoreded capacity then it is 93,173 and was at Wrestlemania III at the Pontiac Silverdome in Pontiac Michigan. It is also the largest recorded attendance for a live indoor sporting event in North America.
1950
The seating capacity of the Millennium Stadium in Cardiff is 74,500. Additional seating can be added for special events. The largest attendance was 74,576 people.
Bobby Bowden Field at Doak Campbell Stadium has a seating capacity of 79,560 people. The largest crowd in Doak Campbell history was in 2013 when FSU beat Miami, 41-14 and attendance for the game: 84,409 people.
It could be 40,000 spectators at Highbury.
over 100 thosand
Largest concert attendance in 1986 for her live in Rio performance with over 250,000 in attendance.
washiington ,redskins
The largest officially recorded attendance was at the 1961 All-Ireland Football Final, when 90,556 people was the attendance. At that time there was less seating and more standing room, so more could get in.
the world's third largest producer of nuclear capacity is Japan.