Foodies flock to this simple but superb restaurant for its speciality – sweet, crispy roast duck (jīn; ¥22). The draw is the skin, which is best described as duck candy, a miraculously ungreasy bite of heaven. Eat it while it's hot – in the middle of the sidewalk with your bare hands, if necessary. Look for the sign 'Zhaoyazi, 赵鸭子'.
You can buy it to take away or sit down at one of the Formica tables in the next-door building (which is still the same place) and eat in a more leisurely fashion.
There are a couple of branches in the city but this one is the original and the best.