If there's one flavor that embodies all that is good about Portugal, it's Port wine. Made with grapes grown and processed in the Douro region, its different varieties impart a sweet yet complex taste, leaving a smooth, mellow aftertaste that lingers long after the glass is dry. Visitors to Porto curious to learn more about the city's namesake wine would do well to drop by the Port Wine Cellars. There are more than a dozen Port wine caves scattered throughout Porto, and their proprietors are happy to provide samples and information about Port wine to any visitor who happens by. Start your journey with a visit to the Association of Port Wine Companies, which has a list of participating Port Wine caves and an interactive map that points out the highlights. Porto Cálem, for example, was first established in 1859, and its white, ruby, and tawny ports have been prized around the world ever since. Croft Port, meanwhile, started producing and exporting Port back in 1588, using only the finest grapes from the Roêda Vineard, thought to be one of the finest in the Douro Valley. Whichever Port cave you visit, you'll be impressed by the care and dedication to tradition that goes into these delightful Portuguese wines. Guests at the Sheraton Porto Hotel & Spa will enjoy sampling the many flavors of this delightful city.

[image via Port Wine Cellars]