Like choosing a prom date, choosing a favorite wine necessitates sampling a variety to determine which one will produce the nicest bouquet. Enjoy the fruits of competitive courting with today's Groupon: for $10, you get a $20 wine-tasting card at Wild Bill's Wine Bar & Cajun Bistro, located downtown.

Within a 200-year-old building, the epicurean experts at Wild Bill's combine four bars—a Cajun café, coffee shop, wine bar, and rooftop patio—pleasing eclectic palates and hungry eyes with a panoramic view of downtown Nashville. Guests swipe cards for carte-blanche access to 48 different vintages, available by the 1-ounce taste, half glass, or full glass ($1.80+), sampling domestic and foreign varietals including Opus One, Caymus, Stags Leap, and boutique wines such as Barrel Monkeys, Cakebread, and Kix Brooks Arrington Vineyards. Each bottle vies for attention in the wine bar's electronic dispensing system that fills glasses with the touch of a button, doing away with waiting on servers or learning the secret handshake and Morse-code ordering system used by sommeliers. Although not included in this Groupon, the Cajun café brings a taste of the French Quarter to the heart of Nashville with authentic New Orleans–style fare such as house-made beignets, Louisiana Gulf shrimp and alligator, and Cajun boudin sausage.

Atop Wild Bill's rooftop patio, the Nashville skyline illuminates chic furniture and exotic plants as eyes affix themselves on sweeping views of some of the city's famed landmarks such as the Bridgestone Arena and the cheddar sculpture of the city's founder and first mayor, Nash McCheese. Wild Bill's four bars inhabit a rustic, historic building whose basement was once a stop along the Underground Railroad, and includes a private party room for large groups.