San Fu Lou Restaurant - AB Tower is a Chinese restaurant near the backpacker street in District 1 that serves Cantonese dim sum and mapo tofu. The dishes are light, made with doubanjiang sauce, and include Peking duck cut through the bone, and you can eat while looking out at the park in front of the restaurant. Orders are marked on paper with a pencil, credit cards are accepted, and the restaurant stays open until 3 a.m. Portion sizes are on the small side.