The ancient Roman town of Turris Libisonis, located at the mouth of the Rio Mannu was the precursor to the current Porto Torres. This had been a Roman colony since the 1st century BC and, of all the estates belonging to the Republic and the Empire, it was the only one inhabited by Roman citizens: it proudly held the name of Iulia, linked to the figure of Julius Cesar or of Augustus.
Under the long Roman dominion, the town underwent several urban renewals: building of the road system, three thermal baths, an aqueduct and the creation of a port where trade relationships with Ostia took place. The colony, between the end of the 2nd and 3rd centuries AD, was second only to Caralis for number of inhabitants, grandeur and maritime traffic. Buildings that will surprise you with their architectural perfection and evocative power are the domus di Orfeo and the Terme di Pallottino thermal baths as well as the central ones, in an area known as Palazzo di Re Barbaro, in which you will find large rooms with baths and elegant mosaics. Between the 3rd and 4th centuries AD, the building activity was intensified: you can admire the evolution of these activities as well as the remains of marble decorations, bas-reliefs and statues. In the archaeological area, you will find the remains of dwellings grouped into blocks and tabernae (workshops). The buildings are delimited by paved roads and are partly incorporated and visible in the Antiquarium Turritano, a museum located in a building within this area, not far from the thermal baths, where artefacts and relics found during the excavations are kept: pottery, funeral urns, inscriptions and mosaics.
Around the ancient town, there are vast necropolises: one to the west, on a shore of the Rio Mannu rivulet and another to south, below the current town, while to the east, on the seafront, including the hypogaeum of Tanca Borgona, there are the funerary complexes of Scogliolungo and San Gavino a mare and the tombs of Balai. The graves range from the early Imperial age to the early Christian period, while there is an almost completely intact Roman bridge over the river with seven elegant arches, making it an exceptional feat of engineering.
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.