Ness of Brodgar

The Ness of Brodgar is an archaeological site covering 2.5 hectares between the Ring of Brodgar and the Stones of Stenness in the Heart of Neolithic Orkney World Heritage Site in Orkney, Scotland. Excavations at the site began in 2003. The site has provided evidence of decorated stone slabs, a stone wall 6 metres thick with foundations, and a large building described as a Neolithic temple. The earliest structures were built between 3,300 and 3,200 BC, and the site had been closed down and partly dismantled by 2,200 BC. It was the main subject of a 2016 BBC Scotland documentary, Britain’s Ancient Capital: Secrets of Orkney, presented by Neil Oliver, Chris Packham, Shini Somara, Andy Torbet and Doug Allan.
For preservation, the site is closed during the winter months and covered in polyethylene plastic and tyres to protect it from the environment.

Wikipedia