One of Benjamin Franklin’s last theories was that taking in a good view while eating aids both in digestion and in the ability to squeeze milk out of coal. Prove him half-right with today's Groupon to Plymouth Restaurant & Bar. Choose between the following options:

• For $20, you get $40 worth of classic American fare during dinner.
• For $7, you get $15 worth of classic American fare during brunch or lunch.

Plymouth Restaurant & Bar serves up a menu of heartily portioned American plates in a casual, three-story setting. Early risers may take advantage of a sizable brunch menu, whose day-fueling fixings include classic buttermilk pancakes ($6.50) and decadent french-toast pecan rolls ($4.95). Later-day lunch or dinner appetites may be whetted with the triple munchie combo of chicken tenders, baked chicken wings, and spicy onion scoops, ideal for ravenous families and starved musketeers alike ($9.95). A bevy of sandwiches and burgers provide satiation for layered cravings, sporting selections such as the John Marshall, a dapper dish serving up char-grilled chicken drizzled with honey-lime sauce and crowned with pepper jack and avocado ($8.95). The Olé burger's bacon, blue cheese, grilled jalepeños, and melted cheddar provide a new twist on an old classic, like prog-rock samples of Beethoven fugues ($8.50).

Of-age patrons may partake of signature martinis, mojitos, and specialty cocktails for pairable sips and tonally pleasing glass clinks ($7–$9). The eatery's multiseason rooftop deck looks out to the Harold Washington Library, offering respite from winter cold and chances to bathe in summer's glow. Guests may take in the latest sporting events on flat-panel TVs as they tan, or feast ravenous eye-mouths on the majesty of the Chicago skyline.