Schloss Westerburg, first recorded in 1192, but probably built earlier, is situated in the town of Westerburg in the forested hills of the Westerwald and is on the site of an older castle dating to the 12th century. The latter belonged to the counts of Leiningen but was transferred to the House of Runkel as the result of the marriage of Siegfried III of Runkel to a daughter of the House of Leiningen in the early 13th century. In the first half of the 13th century the castle was the seat of the lords of Westerburg, who had split off from the House of Runkel by 1288 with Henry I of Westerburg.
The castle was considerably expanded and remodelled over the course of time and, for a long time was the residence of a branch of the counts of Leiningen-Westerburg. The northeast corner and the north front of the site are probably the oldest surviving sections. They include the castle chapel and probably date to the early 13th century. The building that contains the great hall was built between 1476 and 1483. The remaining parts of the site date to the 18th century when it was expanded to a schloss.
Schloss Westerburg is in private ownership and houses a restaurant, and a dental institute.
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.