The Ring of Brodgar is a massive circle 341 ft (104 meters) in diameter Neolithic stone henge ceremonial site dating back to 2500 BC. Located on the Mainland island in Orkney, Scotland, it is part of the Heart of Neolithic Orkney, a group of Neolithic monuments, chambered tombs, cairns, and mounds. Of the original 60 Ring of Brodgar stones, only 27 remain standing.

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C. S.