Porto
The heart of the city is the Ribeira district, the rambling old town is a UNESCO World Heritage-site and is filled with ancient houses, beautiful buildings adorned with tiles, family run restaurants, cafés and bars, and sloping narrow cobbled streets. The Douro river meanders through the city, and is crossed by magnificent bridges joining Porto with Vila Nova de Gaia. Port wine is produced in this region and is still stored and matured in vast cellars in Gaia that stretch along the banks of the river Douro.