Dasburg Castle lies in the village of the same name, next to the German-Luxembourg border, in the Rhineland-Palatinate region in Germany.
Dasburg Castle was probably built during the 9th century by King Pippin. He donated the castle to the Abbey of Prüm who used it as a refuge. In the beginning of the 13th century it was still owned by the abbey but it was lent to the Counts of Vianden. These Counts used it to defend their castle at nearby Vianden. In 1414 the castle was transferred to the Counts of Nassau.
From 1580 until 1604 the castle was owned by King William of Spain. During the 17th and 18th century the castle was property of the Nassau of Orange family.
In 1813 the castle, which was in French hands at that moment, was sold at an auction by Marshal Nicolas-Charles Oudinot with the stipulation that it should be torn down. It has been a ruin ever since.
The castle is now used as a small village park and is freely accessible.
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.