Matosinhos, a small city just north of Porto, is used to change. It has an industrial air to it, due to its 19th-century harbor, and its past prosperity was connected to the fish-canning sector, which peaked during World War II and declined from the beginning of the 70s. The numerous abandoned warehouses attracted nightlife during the 1990s, with clubs finding a fertile zone for noise. The completion of the long-delayed tidal pool, built by Portugal's starchitect, Alvaro Siza (who was born in the city), put it firmly on the map again after the project was delayed for decades. In January, the launch of the new, spiralling cruise ship terminal added to the contemporary design-y feel that has been developing on its otherwise rugged coastline.

Forget the famous francesinha. The best sandwich in Porto – arguably in the country – can be found in a little 1970s tile-lined eatery; the unremarkable interior belies the iconic status of its most celebrated dish. Served up on the corner of Praça Poveiros, a square named after the fishermen from the storied maritime city Póvoa de Varzim, located just north of Porto, the sandes de pernil (roast pork sandwiches) are a curious joy to watch being assembled as well as, of course, to eat. One by one, roast pork legs are slowly cooked in the huge oven in the kitchen behind the bar of Casa Guedes. They are then served directly from the roasting tray by the owner himself, Mr. Cesar.

Seating around only 20 people, Taberna dos Mercadores is a microcosmic reflection of contemporary Porto: a mixture of high-concept design and traditional food. From a design perspective, the focal point of the small yet comfortable dining room is the ceiling, where white metal supports create the outline of a false dome. Although sculptural in nature, the distinctive design is not merely ornamental but also practical: it doubles as a wine rack, cradling neatly stacked rows of bottles. Wine buffs will be satiated at the diverse but humble selection on offer here, which mainly originate from the Douro valley, the sumptuous growing region that extends from Porto along the Douro River all the way to the eastern border with Spain.