9. Ludwig im Museum
Location: Ludwig Museum, Cologne, Germany
While the Ludwig Museum brings together works of 20th-century modernism from all over, including a vast collection of American Pop Art, the restaurant prefers to keep it local with products from regional farms. They earn high marks for butchering meats and stuffing sausages at their very own slaughterhouse. They haven't neglected alternative diets, though, and their vegan and vegetarian menu headers have one item each.