Théâtre Antique is a Roman age a mphitheatre in Vaison-la-Romaine, near other significant Roman ruins. It was built around the year 20 AD, due to the marble statue of the Emperor Tiberius was found in front of the royal entrance to the Theatre. It is thought that the stage wall came to 25 meters high, with a depth of 8 meters and a width of 23 meters. In 1912, many sculptures were found in the twelve pits which had been built to house stage machinery. These sculptures can now be seen at the Théo Desplans Museum. The Theatre leans against the hillside, and today is used for Vaison's annual festival. It holds an audience of 5000 during the Festival performances.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.