Covering 24 blocks and five zip codes, San Francisco's Chinatown is home to barbeque pork, steamed bao, dragon beard candy and enough dim sum to fill the table. There's no one better than local celebrity chef, Martin Yan, to show Leslie around and discover hidden gems tucked in these busy streets. These two are quite the duo singing and laughing their way through the labyrinth of shops and eateries. But she couldn't leave the enclave without a lesson in tea and a visit to famed Chef George Chen's elegant Shanghai retreat.