Photo: Wikimedia CommonsPortos grand nineteenth-century food market reopened in 2022 after a careful restoration, and its two tiers of stalls once again sell fish, flowers, smoked meats and produce beneath a glass roof. It is a working market, so mornings are liveliest and most authentic. Come hungry, graze on a bifana or a pastel de nata from the stalls, and buy some tinned fish or almonds to carry home as edible souvenirs.