Kolarac (KO-lahr-ahts) Restaurant is one of the oldest restaurants in Belgrade, established in 1870. I like to go there but of course have not been in ages because of the virus. They do also have a lovely garden in the back where you are totally unaware of the often crowds on Belgrade's walking street, Knez Mihailova.
Read more about the restaurant here, and see some more pictures in addition to the vintage one posted above right here.
Also, see more reflections on James' WEEKEND REFLECTIONS.