The Penrhos Feilw Standing Stones are a pair of standing stones on Holy Island west of Anglesey in north-west Wales. They are thought to date from the Bronze Age but their origins and purpose are unclear. They are about 3 m high and are a similar distance apart.
The stones are located behind the farmhouse of Plas Meilw. Little is known about the history of the stones. They are believed to be between 3,500 and 4,000 years old and are a Scheduled ancient monument.
The stones are in the care of Cadw; the site is open to the public throughout the year, except around Christmas and the New Year, free of charge. Access is through a kissing gate and across a grassy field, and there is a pull-in by the roadside, large enough for a single car.
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.