Broich Castle was originally erected to protect the town of Mülheim from invasion by the the Normans in the late 9th century. It is probably the oldest, still maintained Carolingian fortification in German-speaking Europe.
The abandoned castle was rebuilt and expanded by the noblemen of Broich in the end of the 11th century. The castle survived a long and eventful history, including bloody feuds, wars, occupation and destruction.
Over 200 years ago, Broich’s most famous guest stayed there - Luise, Queen of Prussia - as the castle was owned by her grandmother.
Today, an exhibition of the local society for history informs the visitor about these events and explains their meaning for the city Mülheim an der Ruhr. It is also a popular location for weddings, music festivals and other events.
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.