Pleven is one of the largest and most beautiful cities in Bulgaria, located in the northern part of the country. It has a population of around 123,880 and serves as an important economic and administrative center. Pleven has a long history dating back to Thracian settlements over 5,000 years ago. During its later development, Pleven was an important military fortress for both the Roman and Ottoman Empires. Today, Pleven is known for its many museums preserving the city's cultural heritage and also serves as an industrial and educational center.