Do you know the watchtower of Forbidden City? It is said that no one can repair it because you can’t put it up again once you take it down. Is that true?...

Do you know the watchtower of Forbidden City? It is said that no one can repair it because you can’t put it up again once you take it down. Is that true?...

All ancient Chinese cities had walls. But all over the country, the walls have almost been torn down and very, very few remain....

All ancient Chinese cities had walls. But all over the country, the walls have almost been torn down and very, very few remain....

Who would have thought that Shanghai, such a cosmopolitan city, used to have gates and walls?...

Who would have thought that Shanghai, such a cosmopolitan city, used to have gates and walls?...