Plovdiv, Bulgaria
Plovdiv is the second-largest city of Bulgaria, standing on the banks of the Maritsa river in the historical region of Thrace. It has a population of 346,893 as of 2018 and 675,000 in the greater metropolitan area. The city has historically developed on seven syenite hills, some of which are 250 metres high. During most of its recorded history, Plovdiv...
