Porto and the Douro Valley
41.149814, -8.610741
This is the area where the 350-year-old production of port wine takes place with the vineyards clinging to steep cliffs. The vines must be tended by hand as the inclines are too steep for tractors. The city of Porto is a UNESCO World Heritage Site and is the oldest European settlement in the country. Many tours are available with the opportunity for port tasting!