Lyon Cathedral was founded by Saint Pothinus and Saint Irenaeus, the first two bishops of Lyon. The cathedral is also known as a Primatiale because in 1079 the Pope granted to the archbishop of Lyon the title of Primate of All the Gauls with the legal supremacy over the principal archbishops of the kingdom. It is located in the heart of the old town, less than five minutes away from the banks of the Saône river, with a large plaza in front of it and a metro stop nearby providing easy access to and from the city center.
Begun in the 12th century on the ruins of a 6th-century church, the cathedral was completed in 1476. The building is 80 meters long (internally), 20 meters wide at the choir, and 32.5 meters high in the nave. The cathedral organ was built by Daublaine and Callinet and was installed in 1841 at the end of the apse and had 15 stops. It was rebuilt in 1875 by Merklin-Schütze and given 30 stops, three keyboards of 54 notes and pedals for 27.
Noteworthy are the two crosses to right and left of the altar, preserved since the council of 1274 as a symbol of the union of the churches, and the Bourbon chapel, built by the Cardinal de Bourbon and his brother Pierre de Bourbon, son-in-law of Louis XI, a masterpiece of 15th century sculpture.
The cathedral also has the Lyon Astronomical Clock from the 14th century.
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.