Neuravensburg Castle was built at the end of the 12th century by the Counts of Argengau, mentioned in 1271, and destroyed in the Peasants' War of 1525. From 1614 to 1617, the castle was reconstructed and expanded into a castle by Abbot Bernhard Müller of the St. Gallen Abbey. In 1836, the castle was sold for demolition, and from 1837 to 1845, it was partially dismantled.
In 1992, the city of Wangen purchased the castle ruins and carried out further restoration work from 1995 to 1996. Besides the keep ruins with a viewing platform, which is accessible from the inside, the foundation walls of the palace are still preserved. The entrance to the castle ruins is located at Hagmühleweg. Following its establishment in 1987, the Neuravensburg Castle and Homeland Association took over the responsibility for the preservation and research of the castle complex.
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.