If we really are what we eat, then it makes sense to learn a little about some of our favourite foods. That’s what these brilliantly specific (and often wonderfully weird) museums are all about, with exhibitions on food history and culture and even entire institutions dedicated to a single ingredient. From galleries tracing the origins of Southern food to museums celebrating potatoes, bananas and Spam, here’s where to brush up on culinary culture. It's worth checking the latest travel advice and individual websites before planning a visit.