Our final stop is Tehran, Iran’s capital city, a sprawling metropolis of eight million people where we hope to glimpse a little of the modern Iranian lifestyle. Our friends Saeid, Rita and their dear little boy Sherwin are our guides. Aged four, Sherwin is a fan of the children’s characters Topsy and Tim and is delighted to meet a real-life Tim. That makes me Topsy. Even though we don’t seem to behave much like the story book people, he seems happy enough to share his Mum and Dad with us for a couple of days.