While 150-year-old steakhouses and farm-to-table innovatorsare all well and good, there's no restaurant more central to the American identity than the diner. From the booths and breakfast counters to the gut-busting comfort food and winking waitresses doling out warm-ups by the dozen, these greasy spoons have been shaping the way we eat for generations, the majority 24 hours a day, 365 days a year. Ask anybody about their favorite diner, and no doubt they'll get misty eyed just thinking about those 2 a.m. waffle runs. Read full story, with the Horseshoe Cafe feature, here.