Linz Castle is an old customs castle and fortress. It dates back to 1365 and was built by the Archbishop of Cologne, Engelbert von der Mark. After an eventful history, the castle has been under private ownership since 1985. The castle in the heart of the town of Linz on the Rhine is once again a major tourist attraction after undergoing extensive refurbishment.
Today visitors will find catering from the Middle Ages in the Great Knights' Hall, in the tower room and in the inner castle as well as a museum in the dungeon and a Roman glass works.
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.