Despite a history stretching back more than 8,000 years, Plovdiv’s most impressive building from antiquity was only rediscovered a few decades ago. The Theatre of Ancient Philippopolis was only found when a landslide caused by engineers tunnelling underneath one of the city’s hills revealed the site. Today, the structure is partly remarkable for the busy modern road that runs beneath it.
Initially founded by Thracians, Plovdiv was known to the Romans as Philippopolis. The Theatre was built during the reign of Emperor Trajan and in its pomp held gladiator fights in front of around 6,000 spectators.
While there is an entrance fee, the theatre can be seen well enough for free from outside.