Mull Hill (also called Meayll Hill) is a small hill at the southern end of the Isle of Man, just outside the village of Cregneash. It is the site of a chambered cairn called Meayll Circle. Near the summit of the hill also lie the remains of a World War II Chain Home Low RDF station.
Mull Hill Stone Circle is a unique archaeological monument. It consists of 12 burial chambers placed in a ring, with 6 entrance passages leading into each pair of chambers. Sherds of ornate pottery, charred bones, flint tools and white quartz pebbles have been found in burial chambers. This archaeological monument was built around 3500 BC; it is a site of legends with diverse stories about haunting.
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.