The project “The Hidden Treasures of Lower Town of Petrovaradin Fortress” was held during EXIT from July 14th to 17th  July 2011. Maps of the Lower Town with marked 15 famous objects were offered to the visitors. The same objects were marked by visible billboards completed with short history of the objects. According to that the questionnaire had been composed and those who answered questions correctly won a prize. The target was to draw attention to the neglected but significant cultural heritage of the Lower Town of Petrovaradin Fortress.
Project was realized by Europa Nostra Serbia from Belgrade and SUBURBIUM from Petrovaradin.