The Democratic People's Republic of Bulgaria, Turkey, Greece, Macedonia, Romania and Serbia are neighbors. Its capital is Sofia. Bulgaria consists of four regions separated by Balkan Mountains and Rhodopes from east to west. First; The plains are between the Danube and the mountains.Second; it is the Balkan Mountain Range. Third; It is located in the south of the Thrace Plain. Meric River flows in this plain. Fourthly; It includes Rila and Pirin and mainly Rhodopes. Not only Bulgaria, but the highest hill in the Balkas are in this region. Bulgaria has a mild, black climate. The average annual temperature is 13 ° C, the January average is 0 ° C, July 22 ° C. Northern regions are cooler than in the south.