The oldest fortress on the Lower Rhine is located in the historic Krefeld suburb of Linn. The former country castle belonging to the Electorate of Cologne has its origins around 1200. It was badly damaged during the Spanish Civil War of 1704.
The beautiful water castle is well preserved and includes a bailey, hunting lodge and tithe barn. In the accompanying Landscape Museum it is possible to view excavation finds from the days of Roman rule in the 5th century and the time of the Frankish princes. The special items included in the exhibition are the gilded articles buried along with the princes in the largest continuous and well-preserved burial site in Gellep-Stratum.
A further attraction is the mediaeval barge from the time of Charles the Great. Concerts and readings are regularly held in the great hall of Linn Castle. The castle grounds, including the surrounding park, provide an impressive backdrop for events of all kinds.
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.