We know that the Quidditch World Cup takes place in a special arena set up specifically for that particular event:
“It’s been a massive organizational problem,” sighed Mr. Weasley. “The trouble is, about a hundred thousand wizards turn up at the World Cup, and of course, we just haven’t got a magical site big enough to accommodate them all. There are places Muggles can’t penetrate, but imagine trying to pack a hundred thousand wizards into Diagon Alley or platform nine and three-quarters. So we had to find a nice deserted moor, and set up as many anti-Muggle precautions as possible.
In the preceding quote, Mr. Weasley implies that Muggle-banned places are extremely small in size: Diagon Alley and Platform 9 and 3/4 . But shouldn't there be a bigger place than Diagon Alley and Platform 9 and 3/4? What about the Chudley Cannons and the Quidditch league? Where did they play?
And we know that those games are huge events - even famous - and can be attended by spectators:
And he was off, explaining all about the four balls and the positions of the seven players, describing famous games he'd been to with his brothers and the broomstick he'd like to get if he had the money.
So where did the Chudley Cannons play and how did they keep Muggles out, and why didn't the Quidditch world cup take place there?