Even though Nation’s has been in business for more than 50 years, the Northern California chain has changed with the times, now offering veggie burgers, wild salmon patties, and lettuce-wrapped sandwiches for the carb conscious. Though it’s the made-to-order hamburgers—topped with your choice of chili, bacon, mild green chilies, and standard veggies—that keep customers coming back, other favorites include creamy shakes and diner-style pies. The best part? The restaurant’s always open early till late, so you can enjoy the goodies whenever your stomach calls. Open 6 a.m.1 a.m. Sun.Thu. and 6 a.m.3 a.m. Fri.Sat.