The Giants' Graves are the remains of two Neolithic chambered tombs on the Isle of Arran. They are situated within 40 metres of each other, and stand on a ridge 120 metres above the sea in a clearing in a forest, overlooking Whiting Bay to the south.
The northern cairn has been much robbed, but the edges are still well-defined. The chamber is 6 metres long, and around 1 metre wide. It was excavated in 1902, and among the artifacts recovered were pottery shards, flint knives, and leaf-shaped arrowheads.
The southern cairn is at right angles to the larger northern cairn. The chamber is about 4 metres long, and over 1 metre wide. Excavations in 1902 only revealed soil and stones, however in 1961-1962 further exploration produced nine sherds of a round-based vessel, and fragments of burnt bone.
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.