Welcome to Xi'an — where Chinese history begins. You're standing in the city that was the capital of 13 dynasties and the eastern terminus of the Silk Road 2,100 years ago. In one day: walk the world's only complete intact city wall, stand 3 meters from 8,000 individually-carved Terracotta Warriors, and eat lamb skewers at midnight in a Muslim Quarter alley that has been continuously Muslim since 651 AD.