I mean, if I could spend even an hour in Diagon Alley--not the fake studio version--I would die a happy woman. That alone would be enough. Although, frankly if Diagon Alley was real, I'd have to see Knockturn Alley, and then Gringrotts (they have dragons!). After that I'd be off to Platform 9 and 3/4 running hopefully into a barrier for a chance to go to Hogwarts. Too bad wizards don't believe in post-secondary education.