Many burger restaurants try to evoke the vibe of 1950’s drive-ins by putting up pictures of Elvis and playing sock-hop music. South 21, however, is the real thing. Since 1955, it's been walking out classic American fare straight to your car, including the Super Boy (two thin patties topped with tomatoes, onions, mustard, lettuce and a pickle). Wash it all down with a soda, milkshake or root beer. L (Tu-Sa), D (W-Sa).