Tucson Winter Chamber Music Festival — the morning rehearsals are wonderful... and free) but never posted it to this blog. It's on the west side of the Leo Rich Theatre, across the plaza from the concert hall. That's La Placita in the background.
(By the way, all of my other photos on this blog are in the public domain: you're free to do whatever you want with them. But I'd like to keep copyright on this one. If you want to use it somewhere else, please ask me first. Thanks.)
Update (December 5, 2014): The area near here has been renovated, as you can see in today's entry on the Tucson Pocket Parks blog.