Oops how can you count overall size not retail size when you're talking about a shopping centre? seems a bit daft. another wiki list has Trafford at 55th in the world and Metro at 70th.
We have a huge food court and leisure facilities as well, such as Gullivers world and that Lego ****e, all part of the Trafford Centre, another 20-30,000 m2 It's all academic anyhow 'cos the Trafford Centre is full of Jihadi's in Burkhas, that's the safest place to be!
Football was targeted in Paris with suicide bombers and yesterday suicide bombers killed people at a football match in Iraq while they picked up trophys after the match . There will be many " Soft " targets targeted from terrorists in the future , you can count on football gatherings will be part of it