The magnificent city of Porto - the capital of Portugal - is located near the mouth of the beautiful Douro river, in the beating heart of the Douro wine region. The Douro region has been regarded as one of the most important viticultural region of Europe for several centuries, and was the third region to be officially recognized and protected as a wine region, with laws having been passed in the mid 18th century regarding its status. Porto is, of course, most famous for the production of Port wine, an aromatic and slightly viscous tawny colored fortified wine, with a fascinating history of seafaring, experimentation and innovation. The vineyards used in the region for the production of Porto's wines contain up to a hundred different grape varietals, resulting in the wide range of Port wines on offer today.