Schloss Ringenberg is a moated castle located in the city of Hamminkeln, North Rhine-Westphalia. It stands in the southeast of the Ringenberg district, which gave the castle its name.
The castle traces its origins to a 13th-century fortress, built in the strategically important border region between the County of Cleves, the Archbishopric of Cologne, and the Prince-Bishopric of Münster. After being destroyed by Dutch troops, the estate came into the possession of Baron Alexander von Spaen in the 17th century, who rebuilt it.
Designated a historic monument in 1984, the site was listed as an archaeological monument three years later. Today, the castle is owned by the city of Hamminkeln, which operates its civil registry office there. The building also houses an artist studio center run by the Derik Baegert Society and a restaurant.
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.