Plovdiv is the second largest city situated in Bulgaria, just next to the city of Sofia. Plovdiv is one of the oldest cities in Europe. It lies within the big plain between the Rhodope Mountains and Old Mountains or the Balkan Range, which runs through the middle of Bulgaria. Plovdiv is the administrative center of three municipalities, namely Maritsa, Rodopi, and Plovdiv, and the southern part of Bulgaria. In addition, this city is the most significant and the largest city on the Northern Thrace. It also includes the wider global historical region of Thrace. Plovdiv is a significant educational, cultural, transport, and economic center. (more…)