West Ham will move into the Premier League's second-biggest stadium when they swap the Boleyn Ground for the Olympic Stadium, with the Hammers' new home behind only Old Trafford in terms of capacity.
The Olympic Stadium currently holds 80,000 spectators but will be reduced to 60,000+ and altered to fit football purpose after West Ham were named as the London Legacy Development Corporation's first choice tenants.
Arsenal's 60,361 Emirates Stadium will be narrowly beaten by the capacity of the Hammers' new home, but both will still be lagging behind Manchester United's 75,765-seater ground arena.
Old Trafford is not, however, the largest association football stadium in Europe and, in fact, it fails to even come close to the Camp Nou, which accommodates almost 100,000 supporters.
The highest ever attendance at the Camp Nou came in the days before all-seater stadiums, when 120,000 Catalans crammed in to watch Barcelona take on Juventus in March 1986.
Wembley Stadium, the self-proclaimed 'Home of Football', is second to Barcelona's home in terms of capacity, with the 2007 edition of England's national stadium able to house 90,000 fans.
Like all modern stadia, the highest ever attendance at Wembley is far greater than the current capacity, with an estimated 300,000 people squeezing in for the famous White Horse Final between Bolton and West Ham 89 years ago.
Third of Europe's biggest grounds is Borussia Dortmund's Signal Iduna Park which is able to hold 83,000 for domestic matches, but must reduce capacity to 65,718 for European matches to ensure everyone is seated.
The Westfalenstadion, is it was originally known, has the largest free-standing grandstand in Europe, with the 'Yellow Wall' having a 25,000 capacity on its own.
There is little to separate the next three in terms of capacity, with the Stade de France, Santiago Bernabeu and San Siro all marginally above the 80,000 threshold.
Up next comes the Luzhniki Stadium in Moscow, where Manchester United won the Champions League 2008, with the home of Russian football boasting a capacity 2,000 greater than that of Turkey's impressive Atatürk Olympic Stadium.
It may be the largest ground in the Premier League, but Old Trafford is only the ninth biggest football stadium in Europe, while Wales' national stadium - the Millennium Stadium in Cardiff - completes the top ten.
1. Camp Nou (Barcelona) - FC Barcelona
2. Wembley Stadium (London) - England national team
3. Signal Iduna Park (Dortmund) - Borussia Dortmund
4. Stade de France (Paris) - France national team
5. Estadio Santigao Bernabeu (Madrid) - Real Madrid
6. San Siro (Milan) - AC Milan and Internazionale Milano
7. Luzhniki Stadium (Moscow) - PFC CSKA Moscow, FC Spartak Moscow and Russia national team
8. Atatürk Olympic Stadium (Istanbul) - Istanbul BBSK and Turkey football team
9. Old Trafford (Manchester) - Manchester United
10. Millennium Stadium (Cardiff) - Wales national team
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