Hohes Schloss (High Castle) in Bad Grönenbach was built originally in the late 12th century. The latest remaining parts where built around 1280 by Heinrich Ludwig von Rothenstein. It was enlarged in the 14th century.
In 1482 the castle was acquired by Pappenheim family. It was besieged and damaged during the Peasants' War in 1525 and conquered by Bayern and French armies in 1703 during the war of Spanish Succession.
Today Hohes Schloss is used for events, guided tours etc.
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.