The wife insisted that we go and see Siena. It tuned out to be a really lovely place, but expensive! It's got lovely small streets which is great for getting lost in, and a dream come true for the architectural photographer. I'm certain you could spend a couple of months there and still have a lot left to photograph.
What was really interesting to see was the Piazza del Campo where the famous Palio horse race takes place twice a year. This is where 10 riders from the 17 districts compete in a 3 lap race around the square. Having seen the square in person I really can't imagine myself taking part in such a race. It must be brutal.
The tower in the above image is situated in the Piazza and it gave me a reason to put on the mZD 12 f2. This really is a fine lens, although it's not that cheap. I stopped it down here to f8 but I think f5.6 would have been enough.