The first Silkeborg Castle, a primitive wooden building surrounded by palisades, was built in 1385. It was later replaced by a stone building, and again in the early 16th century by a main building in stone, a courtyard and a stable yard. Silkeborg Castle received royal visits on several occasions. Both Frederik II and Christian IV were regular overnight guests in the main building “Det Store Stenhus” (the great stone house), during hunting trips and the like in Central Jutland. The castle was badly damaged during the Swedish wars in the 17th century, when Silkeborg was occupied by Swedish troops, who ravaged the castle buildings, no fewer than three times. Having been in a state of disrepair for years, the last remains of the castle were demolished in 1726. Today, the layout of both the main building and the courtyard is marked by embankments. There is access to the area via a bridge across the River Gudenå at Lake Silkeborg Langsø and from the Papirfabrikken area.
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.