Business professionals mingle at this classy, downtown cocktail lounge. As befits a place named for the Cuban capital, there's a huge array of cigars for sale and a walk-in humidor. Weekends feature live jazz and blues. Open Monday-Friday from 4 pm, Saturday from 6 pm. Cover varies. 441 Vine St., in the Carew Tower, downtown, Cincinnati. Phone 513-651-2800. http://www.havanamartini.com.