The First Ancient Theatre of Larissa, carved into the southern slope of Frourio Hill, is the largest theatre in Thessaly and one of the best-preserved Hellenistic theatres in mainland Greece. Built in the third or second century BC, it could accommodate around 10,000 spectators — a substantial audience for a city of this size. Its semi-circular seating (the cavea) is cut directly into the hillside and looks out over the city below.
Archaeological work has revealed multiple construction phases, with Roman additions and modifications to the original Hellenistic structure. Marble seating blocks, the orchestra circle, and portions of the stage building (skene) are all visible. The site is freely accessible and rarely crowded, which makes it one of the more atmospheric ancient theatre experiences in Greece — none of the entrance fees or tour groups that crowd Epidaurus or Delphi. Arrive early morning for the best light across the stone.