Once a national chain, only a handful of classic Frostop Drive-Ins remain. Frostop is straight out of the 1950s with its trademark swirling root beer mug on the roof. Car hops bring frosty mugs of root beer to wash down a variety of sandwiches, including hamburgers, grilled chicken, bar-b-que, and more. Frostop also serves old-fashioned chocolate malts, as well as root beer floats and other ice cream treats. They’re open daily for lunch and dinner.