As I was flying out of Pisa and had to get the train there on Thurs am, it seemed silly not to take a peek at the tower. I walked through Pisa, because Il campo where the tower, cathedral etc are situated is on the opposite side of the city to the train station. I didn't have a map so looked at the one outside the station. Keep walking and turn left at the end. So I ended up walking along a residential street and there was the tower at the end, which was very funny.
From the plane, by chance, I got a great view of Il campo and later the Alps.