Viana do Castelo sits where the River Lima slides into the Atlantic, a small city in Portugal's Minho region that punches far above its size. It grew rich in the Age of Discoveries as a port for cod-fishing fleets and trade with Brazil, and that prosperity is written into its Renaissance squares, granite manor houses, and gilded churches. Above it all rises the hill of Santa Luzia, topped by a neo-Byzantine basilica that draws comparisons to Paris's Sacre-Coeur.

This is the heartland of Portuguese folk culture: gold filigree jewelry, hand-embroidered costumes, and the riotous Romaria de Nossa Senhora da Agonia festival every August. The food is unapologetically hearty, built around salt cod, river lamprey in season, slow-cooked pork (rojoes and sarrabulho), and crisp vinho verde poured from the surrounding green hills. Save room for a bola de Berlim, the cream-filled doughnut this city has turned into an art form.

Getting around is easy. The compact old town is best on foot, a vintage funicular climbs to Santa Luzia, and a seasonal ferry shuttles across the river to the long dune beach at Cabedelo. Viana is well connected by train and motorway to Porto (about an hour south), making it an ideal short break. Late spring through early autumn brings the warmest, driest weather and the liveliest waterfront.