Our original plan was to go to Arezzo for an afternoon first, but you have to transfer to the Arezzo bus in Siena. And we missed it by about ten minutes. There wasn't another one until the end of the afternoon, so we decided to spend the rest of the afternoon in Siena (since we were there). We began our trek toward Il Duomo. You know, the zebra-striped one! (It's there in the distance.)