One of New York's most classic burgers can be found at this prepster pub that's been serving the Upper East Side since 1972. The hallmark of J.G. Melon is the hamburger, comprised of a griddled beef patty and American cheese on a toasted potato bun. If you aren't a regular who lives within a five-block radius, the bar burger really is the only reason to go to J.G. Melon, whose melon decor and green-checkered tablecloths haven't changed much since it first opened.