Sergi: I think it’s one of the most important things in Xi’an, to visit the City Wall, definitely, because it’s something typical. You can take a look at what’s going on in the city ...

Say the word Xi'an, and people think of the Chinese city's astounding collection of terracotta warriors, created to guard the Emperor Qin Shi Huang's tomb in the third century B.C. But on a recent ...