Riedheim Castle was built in the 13th and 14th centuries and was owned by the von Randegg family. The castle was allegedly damaged in the Swiss War and around 1500 the residential tower was probably raised and the courtyard portal expanded. In 1518 the castle was owned by Hans von Schellenberg and in 1609 by Konrad Vintler von Plätsch. In 1601 the property went to Archduke Leopold of Austria and in 1735 it was sold to the Petershausen Monastery. In 1803 the castle came to the Margraves of Baden and was sold to the municipality of Riedheim in 1841.
After the tower roof collapsed on May 20, 1951 and the top gable broke off, the top floor was restored in 1957. 1976 to 1978 the castle was restored.
The rectangular castle complex comprises a bering of around 38 by 27 meters with a rectangular residential tower in the middle with late Gothic stepped gables. The four-storey residential tower on an area of approximately 12.35 by 8.7 meters is 27 meters high with the high entrance 4.5 meters high. The wall thickness of the tower shows a thickness of 1.5 meters on the ground floor and a thickness of one meter from a height of three meters.
The curtain wall is around 1.2 meters thick and has scales built on the inside. The arched entrance (around 1550) is on the west side. The castle was surrounded by a moat and probably a rampart. The castle can only be viewed from the outside.
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.