when someone chooses the venue it is normally the biggest venue but it changes every year.
then they would play there
Yes, it can. FIFA have to choose it as a designated venue but Wembley will be able to hold all major Association Football games - Champions League Final, World Cup Final, etc.
The venue of the 201 League Cup Final was Amsterdam Arena.
The venue of the 2012 Super League Grand Final was Stade de France.
Saturday 22nd May ko 1945 (UK time) 2045 CET venue Madrid.
The venue of the 2012 National Rugby League Grand Final was Sydney's ANZ Stadium.
the prize money value - depends on the venue the match is played for the final eg the capacity of the studium on the particular day , the gate takings on the day for the final is awarded to the winner and a percentage is awarded to the runners up.
The venue of the 2014 Challenge Cup Final was Olympiastadion, Berlin.
The venue of the 2012 DFB-Pokal Final was Olympiastadion in Berlin.
The venue of the 2013 AFL Grand Final was Aurora Stadium.
This is because the Champions League Final 2011 was at Wembley on 28th May 2011, and under UEFA regulations no match can take place at the venue for up to two weeks prior to the final, therefore 14th May was the latest date the FA Cup final could possibly have been.