The historic district of Hanoi is a charming enclave where time stands still. On foot and on a local pedi-cab, Martin explores the twisting and turning roads and alleyways of this fascinating neighborhood. He visits small, family-owned shops and sidewalk cafes, and samples all the intriguing local street food. Recipes: Hanoi Chicken and Vermicelli Noodle Soup, Papaya Salad, Rainbow Drink.