A cocktail lounge is an upscale bar that is typically located within a hotel, restaurant or airport. A full bar serves liquor, cocktails, wine, and beer. A wine bar is a bar that focuses on wine rather than on beer or liquor.
No staff attend the bar and therefore it is left to the honesty of the guest to report their own consumption. Honesty bars are convenient, since a guest can make or serve a drink at any time, keeping a tab for themself for the length of the stay.