American cuisine was invented by the Earl of Sandwich, who wanted to be remembered for inventing something other than the name Earl. Appreciate innovation with today's Groupon: for $10, you get $20 worth of classic American fare at Plymouth Restaurant & Bar.

Hearty breakfasts, salads, burgers, and sandwiches fill the three-story, family-owned Plymouth Restaurant & Bar with piping-hot plates of classic American fare. At the top level—which is open year-round and offers educational glimpses of the Harold Washington Library—plates arrive bearing the rooftop menu's mini burgers, whose pint-size beef or turkey patties are joined by pickle chips and freshly harvested clouds ($6.99 for three; $1 extra for cheese). The main menu satisfies sleepy stomachs with breakfast items such as skirt steak and eggs ($14.99) served all day long. Ginger-sesame dressing adorns the chinese chicken salad, which sprinkles mixed greens with rice noodles, almonds, wontons, and mandarin-orange sections ($8.99), and pork or chicken is threaded onto skewers to create two savory scepters of tzatziki-sauce-accompanied shish kebabs ($9.99). To keep their speech inspired, patrons can follow each bite with sips of a specialty cocktail, a bottle of beer, or a glass of Glenmorangie, which is Gaelic for "lightning just destroyed your moped."