Barrafina
One of London's favorite Spanish tapas bars, modeled after the tiny Cal Pep tapas spot in Barcelona, has only a few raised bar stools within the open-counter kitchen south of Trafalgar Square. Lunchtime lines form from noon daily for a top-quality succession of impeccably sourced small plates, ranging from giant Spanish carabineros red prawns and Iberian pork cheeks to black squid ink risotto with cuttlefish. There's a thoughtful selection of Spanish reds, whites, sherries, and sparkling white cava, and be sure to leave room for noted desserts like the almond-based Santiago tart.