Plovdiv is the second-largest city in Bulgaria after Sofia, as well as the largest and most important and developed city of the historical region of Upper (or Northern) Thrace, famous for its ancient and diverse culture and millennial history. Plovdiv is located on the banks of the Maritsa river in the central part of Upper Thrace. The surrounding countryside is sparsely populated and bare, yet the city itself is particularly striking, since it, like Rome, is nestled in between seven ... read more