The Ring Of Brodgar Stone Circle And Henge, which is part of The Heart of Neolithic Orkney World Heritage Site, is a spectacular stone circle. The ring is surrounded by a large circular ditch or henge. The truly circular layout of the ring is an unusual attribute that singles it out as one of the largest and finest stone circles in the British Isles. The Ring of Brodgar (alternative spelling Brogar) comprises a massive ceremonial enclosure and stone circle probably dating from between 2500 and 2000 BC. Around it are at least 13 prehistoric burial mounds and a stone setting (2500-1500 BC). The erecting of the stones, along with the massive rock cut ditch was an activity that required considerable manpower and organisation.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.