>> biryani. maybe you know the word. though this doesn't look like any biryani i ever had. minced lamb shoulder, onion, tumeric, cinnamon, mint, and of course, saffron, more valuable than gold by weight. this is delicious. >> very good. >> isfahan today, is it one of the most visited areas by tourists. >> yeah, everybody know if you go to tehran, you don't visit isfahan, you are wasting your time. >> the royal mosques, the second largest square in the world behind tiananmen in china. at dusk families come to the square to cool off, picnic, and