Most visitors would like to try nightclubs on the river bank, and try local restaurants at Skadarlija, but that is really a matter of taste. Belgrade has a population of 1.5 million, and it lives 24/7/365 so you won't be bored whatever you like. Cafes are full during the day, and nightclubs during the night practically every day of the week.

Incredible. With a city life like that you should be commended for taking the time out to extend clojure. Salute.

I was there doing that around two years ago.

Very nice experience.