Antico Forno is billed as “The Most Authentic Italian Restaurant,” and we’re hard pressed to argue. This mainstay in Boston’s North End manages a cozy mom-and-pop atmosphere with world-class traditional cuisine. Entrees like Saltimbocca di Pollo and Linguine al Frutti di Mare hearken back to the old country, but Antico Forno is best known for its brick-oven pizzas piled high with house-made Italian sausages and mozzarella.