Ponte Vella is a medieval footbridge built on Roman foundations in Ourense. At one time, it was considered to be the biggest bridge in all of Spain.
The original bridge across the Minho River was built during the first century rule of Emperor Augustus though other sources state that it was built during the Trajan period. A mention is made of this bridge in the will of Doña Urraca, where it is said that it was repaired with funds provided by Ferdinand III. From the Middle Ages, it has provided access to the city of Ourense for trade and pilgrimage.
The structure was rebuilt in 1230 by Bishop Lorenzo on Roman foundations (original piers), and repaired in 1449 by Bishop Pedro de Silva. It then measured 402 m long, with an arch span of 48 m. However, the main arch collapsed in 1499 and the bridge was rebuilt in 1679 to a length of 370 metres with seven arched spans, the main span measuring 43 metres.
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.