The Old Castle is located in the centre of Stuttgart. The first castle dated back to around 950 when Stuttgart was a settlement for breeding horses; it was built to guard the Stutengarten of the stud. In the 14th century it became the residence of the Counts of Württemberg and the court chamber (Hofkammer) of the House of Württemberg. In the 16th century dukes Christopher and Ludwig ordered it to be converted into a Renaissance palace or schloss; work which was carried out from 1553 to 1578. It was at this time (1560) that the equestrian staircase was built by Blasius Berwart. In 1562 the palace church was consecrated and the conference hall furnished. The moats around the castle were filled in during the 18th century.
In 1931, the castle was severely damaged by a fire and before it could be reconstructed it was damaged by bombing in the Second World War. The castle was finally renovated in 1969.
King Charles I of Württemberg and his wife Olga are buried beneath the castle church. The inner courtyard houses a monument to Eberhard I. The Old Castle stands adjacent to its replacement, the New Castle, which was built in the late 18th century.
Today the Old Castle is home to the Württemberg State Museum.
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.