At this historic North Beach hangout, diners regularly tuck into thin-crust pizzas, steamed mussels, linguine with clams, thick and juicy burgers, and lamb sirloin with celery-root gratin while gently swaying to first-rate live music. Grazers are happy to find a slew of eclectic tapas, from tuna tartare to fried olives. On the outdoor patio, heat lamps keep the serious people-watchers warm until closing.