"Situated in a narrow alley just off the frenetic streets of the riverside area, Taberna dos Mercados serves traditional regional dishes to about 20 lucky people, so be sure to book a table in advance. Order a bowl of seafood açorda, a popular bread soup made with prawns, clams, and cockles, or the Portuguese cozido, stewed lamb with potatoes and greens. The wine list favors bottles from the nearby Douro Valley." - Rafael Tonon