Plovdiv Bulgarian: Пловдив is the second-largest city in Bulgaria, and one of the oldest cities in Europe. It is located in the large plain between the Rhodope Mountains in the south of Bulgaria and the Balkan Range, or Old Mountains Stara Planina that runs through the center of Bulgaria. Both ranges are visible on clear days. The Maritsa River flows through the city on its way southeast before forming the Greek/Turkey border to the Aegean Sea.
