The Roman theatre in Plovdiv, Bulgaria

The ancient Roman theatre in Plovdiv, Bulgaria, is among the best preserved antique theatres in the world. It was built during the reign of Emperor Trajan (98 -117 AD). 

The theatre is characterized by its excellent acoustic, beautiful architecture, and wonderful sculpture works. It was discovered by accident in the early 1970s due to a landslide. 

Sometimes it is mistakenly called "amphitheater", but indeed this is a real traditional Roman theater. In 1999 Ritchie Blackmore performed here with his project "Blackmore's Night".