The first documented mention of the castle was as Regensburg property in 1327. In 1355, Leutold II of Kuenring, the first known owner, died. The Kuenringers were a significant Austrian noble family, named after their seat Kühnring. Leutold's successors, Andre of Lichtenstein and Friedrich of Wallsee, renounced ownership for money, and Eberhard I of Kapellen acquired it in 1359. Subsequent owners included Ernst Preuhofer, the Liechtensteins, Chunrad the Steward, the Öders, Reinprecht V of Walsee, the Hausers, and Christof Zeller of Riedau, who were known as robber barons.
Georg von Wolframsdorf inherited it and around 1530, it passed to the Tannberg family, who sold it to Hans von Tschernembl in 1575. His son, Baron Georg Erasmus von Tschernembl, expanded it in 1608 with Antonio Canevale's design. As a Protestant leader, Georg left the country, and the castle was confiscated in 1620, bought by Count Leonhard Helfried von Meggau. During the Upper Austrian Peasants' War in 1626, the castle was briefly occupied. Later, it belonged to the Starhembergers, Kuefsteiners, and Thurnheim Counts, until 1899, when Baroness Therese von Schwitter owned it. In 1911, Count Alexander Hoyos acquired it, and it remains with his family. Archduchess Alicia, the last Grand Duchess of Tuscany, died there in 1935. After WWII, the Soviets renovated the Chinese Salon.
The castle, located north of Schwertberg where the Aist river exits the Josefstal valley, appears fortified with a design from 1608. Surrounded by the Aist on three sides, it has a Renaissance garden, one of the few of its kind in Austria, and a sundial on a round tower. The main building, partly Gothic and partly Renaissance, features arcades, a falcon kennel, and a chapel dedicated to Saint Mary. The Chinese Salon has wall paintings and a small Rococo library.
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.