Bulgaria helps Serbia in crossing the 'Schengen' wall
Bulgaria and Romania, which are ' fresh example' for crossing from so called 'black' to 'white' Schengen list will help Serbia with their experience to cross the Schengen wall itself.
Bulgaria is the best border of the Schengen Area, Prime Minister Boyko Borisov said at the opening of ``Treasures from Bulgaria. The gold of the Thracian warriors'' exhibition in Brussels, FOCUS News Agency reported.