It boasts world-class performances at its Roman theater

Plovdiv's old theater was established in 90 ADS, when the city was known as Philippopolis, an important Roman border town. Nobody knew until the 1970s that a whole Roman theater lay dormant beneath one of Plovdiv's hills – but after a landslide revealed it, it was skilfully restored to its former glory. The theater frequently hosts operas, plays, and even rock concerts. Ticket rates are normally extremely low, and it's incredible to believe that the marble benches were originally used about 2,000 years ago.

The theater frequently hosts operas, plays, and even rock concerts. Ticket rates are normally extremely low, and it's incredible to believe that the marble benches were originally used about 2,000 years ago. Due to a landslide, the theater was finally discovered in the early 1970s. This resulted in a significant archeological excavation, which included the removal of approximately 4.5 m of soil covering what had been concealed by the landslide. The restoration of the Roman theatre in Plovdiv is regarded as one of the Bulgarian Conservation School's crowning achievements. The theatre is one of several Roman Empire-era structures that have been survived in Bulgaria. In the theatre, there exist various steles and wall inscriptions in Byzantine Greek.