Can you imagine dining in a restaurant that has been serving diners for more than 200 years? Sobrino de Botin is in the Guinness Book of World Records as the oldest operating restaurant in the world. The restaurant opened in 1725 on the ground floor of an inn. At that time, guests were expected to bring their own ingredients, which would then be cooked in the restaurant’s kitchen. Nowadays the restaurant takes up four floors of the building and still serves the famous suckling pig.