I took this in a shop in Chinatown. When I go on photowalks I search for things that might be interesting and not really looking to generate a lot of thought on any particular subject. I sometimes come across things that do have meaning to me and I think I have managed to bring it to the photos. When I saw this I thought it should represent something. What came to me was "Building knowledge must be done wisely or it can become precarious."
I used my 24-85 at 30mm 1/40th sec f4.5 iso 1600