The Palatine Gate (Porta Palatina) is a Roman Age city gate located in Turin, Italy. The gate provided access through the city walls of Julia Augusta Taurinorum (modern Turin) from the North side and, as a result, it constituted the Porta Principalis Dextra (Right-Side Main Gate) of the old town.
Built in the 1st century during the Augustan Age or the Flavian Age, the Porta Principalis Dextra may predate the construction of the city walls and was perhaps built on the location of an earlier Republican Age gate.
This facility served as a city gate for a long time and was turned into a castrum in the 11th century, although it lost the internal structure of the cavaedium over the centuries. In 1404, after centuries of incursions and partial decay, the western tower was rebuilt and both towers got completed with battlements for defensive purposes.
The Palatine Gate represents the primary archaeological evidence of the city's Roman phase, and is one of the best preserved 1st-century BC Roman gateways in the world. Together with the ancient theatre's remains, located a short distance away, it is part of the so-called Archaeological Park, opened in 2006.
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.