Gålrum is an ancient burial ground including 122 ancient monuments. There are 5 large stone cairns, 110 round stone settings and 8 ship settings. The site was in use for 1500 years and reflects the differing burial styles over that long period of time with the earliest dating back to the Bronze Age around 1500 BC.
The cairns vary in size from 10 metres to 25 metres in diameter and mostly have perimeter stones around their bases. The largest ship setting is 12 metres by 4.25 metres. Some of the site has been damaged by agriculture and a road passes through part of the site isolating 20 monuments on the eastern side of the road, including the enormous cairn known as Digerrojr.
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.