On a traffic island on Studentski trg (Student square), opposite of house #7 (intersection at 1300 Kaplara) there is an old advertising column with a simple, but unusual shape. While the majority of the advertising columns have the strict form of a cylinder, this one is a bulging cylinder. It's made of concrete. A lot of smaller advertisements for various events (concerts etc.) are attached to it and this is probably easier than to use one big poster on this unusual shape, which would have a lot of folds.