Quiz of the Year: 52 weeks 52 questions, part three
PLUS there's a special bonus question each day.
In addition to the 12 questions above, we also pose an extra puzzler for each of the four parts of this quiz. That's how we reached the magic total of 52 questions.
With each part of the quiz we publish photographs - the first, second and third of which are below. What is the link between the images over the four days?