Château de Houlbec-près-le-Gros-Theil was originally a square castle with rounded corner towers. It was built in the Middle Ages and conquered by English in 1418 (Hundred Years' War) and by Catholic League in 1588 (during the Wars of Religion). The castle was rebuilt in 1786 and heavily damaged by fire in 1910. Today the château is abandoned but two towers and other signicant ruins still remain.
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.