Introd castle stands on a promontory protected by the harsh gorges of the Savara and the Dora di Rhêmes (in fact the name Introd derives from the term Interaquas, or entre-eaux in French, which means “between the waters”) and probably dates back to the 12th century.
Like Graines castle, originally, it probably consisted of a square keep surrounded by a perimeter wall. Around 1260 Pierre Sarriod of Introd transformed the early castle which, following the modifications of the 15th century became five-sided and almost circular in shape, setting it apart from other castles in Val d’Aosta. These transformations mark the apogee of the Sarriod family, which included the Lords of Introd and La Tour (Saint-Pierre).
The castle was heavily damaged by two fires during the second half of the 19th century and was rebuilt at the start of the 1900s by Gonella, who engaged the architect Chevalley. Today it is owned by the Counts Caracciolo of Brienza and rented out for free to the Municipality of Introd. The ground floor and castle gardens are open to the public.
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.