Laufen Castle is a square-shaped castle overlooking the Salzach river that was built for the Archbishop of Salzburg in the 15th century. It is assumed to be built on the ruins of an ancient Roman structure and was first mentioned in the reign of Bishop Vergilius of Salzburg, and once again in the 13th century. On March 29, 1166, Emperor Barbarossa held court here.
During World War II the castle was used first as a prisoner-of-war camp for officers, Oflag VII-C. Then In May 1942 the officers were transferred to another camp, and the castle was used as an internment camp Ilag VII housing some hundreds of men deported from the Channel Islands of Jersey and Guernsey and some American civilians that had been caught in Europe by the declaration of war by Germany on the United States on 11 December 1941.
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.