Dun Borrafiach is an Iron Age broch located on the Waternish peninsula of Skye. It occupies a rocky outcrop overlooking the Borrafiach Burn. Dun Borrafiach has an external diameter of 16.5 metres, and the walls still stand to a height of 2.7 metres on the south side. The entrance is on the northwest side of the broch. The northeast side of the entrance-way appears to have been narrowed in antiquity by the insertion of additional walling. Inside the broch, a long stretch of the outer face of the intramural gallery is still visible on the east side.
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.