Pictured here is the Haggis, a savoury pudding containing sheep's pluck i.e., heart, liver, and lungs. It is then minced with onion, oatmeal, suet, spices, and salt and mixed with stock. Traditionally cooked encased in the animal's stomach, nowadays an artificial casing is often used instead. If you want to relish one, to where should you plan a trip?