One of the things that caught my attention during my stay in Beijing was the door knobs used in some of the heritage centres.

This pic is from the Forbidden City (Palace Museum), taken using Canon EOS 7D, mounted with a Canon EF 70-200 f/2.8L IS II lens. I used Av mode, auto-ISO and f/6.3 for a 1/200s, ISO-500 exposure.

I saw a similar looking door knob, later at the Temple of Heaven. The pic above is also with Canon EF 70-200 f/2.8L IS II lens, at f/9, auto ISO, Av mode for a 1/160s, ISO-400 exposure.