Spot the ball park: No1

Can you identify the sporting arena? We take an aerial view of a ball park, football stadium, marathon course, golf course, Games venue, race track, iconic arena, athletic theatre (some literally theatres), pitch, park, stretch of water or wherever else sport takes place. And we ask you to identify it with the help of a cryptic clue...

SPOT THE BALL PARK: No1

Clue: Three cathedrals in a northern clime. (Footballing cathedrals, that is).

But which city? And what are the venues in question?

Answers in comment box, please. Winner receives a pat on the back (self-administered).