The document summarizes the 1700th anniversary celebration of the Edict of Milan held in Viminacium, Serbia. President Tomislav Nikolic opened an exhibition on Constantine the Great and the Edict of Milan. The celebration also included performances of the opera Aida in the reconstructed Roman amphitheater of Viminacium. The landscape surrounding Viminacium contains natural, cultural, and historical factors, including agricultural lands, rivers, the archaeological park, and remains from Roman, medieval, and early mining periods.