It will be a while before I board an international flight again, but it doesn’t look impossible any longer. I’d got into what I call ambush photography in extremely crowded tourist spots where everyone is busy converting history into a backdrop to their glamourised online lives. This lovely moon door in Nanjing’s Ming era Zhan Garden was impossible to photograph without including other tourists. Ambush photography is when you deliberately use others being photographed in your photo. Using a zoom lens from far to take photos of people photographing each other can be ambush photography, but it borders on voyeurism. Instead, I set a rule for myself: the best ambush photos are when the subject(s) of the other photographer’s photo clearly realize that a stranger is also taking their photo at the same time, or the subject of your photo is the photographer, not the people s/he is photographing. That said, the real subject of my ambush photos is usually the setting, when I cannot subtract the people from it. So that’s what I have done with this beautiful door in a pavilion overlooking a pool with weeping willows drooping over it. It is my memory of how this aristocratic garden, once closed to common people, has been repurposed in a republic.