Nice road between Knjazevac and mountain Stara Planina. This road will take you to one of mountain top which is called "Babin zub". At first road is twisty but not too much so ride is comfortable. Nature is beautiful. Second part of the road is more twisty and the curves are sharper. I recommend this road to everybody who like nature. It is good to know that after city of Knjazevac you do not have any gas stations.