Howdy,
Welcome to the forum.
Believe it or not I've been to Queretaro before, I live in Maine so it's quite a trip from here. I was there for a church festival I helped with, I'd say it was about 7 or so years ago, I think it was called "Festival de Vida" we held it in a soccer stadium.
Anyway i just thought it was neat to hear from someone who lives there.