What are orthastats?

Orthostats are large, flat stones or slabs that are typically set upright in a vertical position, often used in the construction of megalithic structures, such as tombs or standing stones. They can serve both structural and symbolic purposes, marking boundaries or serving as part of ceremonial sites. Common in prehistoric cultures, especially in Europe, orthostats provide insights into ancient engineering and social practices. Their significance can vary widely depending on the archaeological context in which they are found.