The Ring of Brodgar is a massive stone circle and henge in Mainland Orkney, dating back to the 3rd millennium BC. With its 36 surviving stones, burial mounds, and rock-cut ditch, it's like stepping into an ancient druidic gathering spot. Visitors can wander among these mysterious stones, part of the Heart of Neolithic Orkney World Heritage Site, and soak up nearly 5,000 years of history. It's a must-see for anyone curious about Scotland's prehistoric past!